Using Doubles to Add Worksheets - Grade 2 Mathematics - Exercises with solutions

Master using doubles to add: doubles facts, near doubles, and doubles strategy through these 10 detailed worksheet exercises with verified solutions.

Solutions: Exercises 1 to 10
1 Basic doubles addition
Exercise 1
What is 7 + 7?
Difficulty: Beginner Time: ~1 minute Skills: Basic Doubles Facts
Definition:

Doubles facts: Addition problems where the same number is added to itself

Note: Doubles facts are foundational for mental math and help with other addition strategies.

Step-by-step doubles method:
  1. Recognize that we're adding the same number twice
  2. Count the number of groups: 2 groups of 7
  3. Multiply: 2 × 7 = 14
Original Problem
7 + 7
Solution
14
Step 1: Recognize the pattern

We're adding 7 twice: 7 + 7

Step 2: Count the groups

2 groups of 7 objects: ⭐⭐⭐⭐⭐⭐⭐ and ⭐⭐⭐⭐⭐⭐⭐

Step 3: Add the groups

Total: 7 + 7 = 14 objects

7 + 7 = 14
Final answer:

7 + 7 = 14

Applied rules:

• Doubles: Same number added to itself

• Pattern: Doubles always result in even numbers

• Memory tip: Practice doubles facts until automatic

Related Examples:
  • 5 + 5 = 10 - Practice with smaller doubles
  • 8 + 8 = 16 - Practice with medium doubles
  • 4 + 4 = 8 - Practice with single digits
Quick Tips:
  • Doubles always result in even numbers
  • Memorize doubles facts for mental math speed
  • Use doubles to help with near doubles
Frequently Asked Questions:

Q: Why are doubles facts important?
A: They build fluency and help with other addition strategies like near doubles.

Q: What numbers can be doubled?
A: Any number can be doubled, but we focus on 1-10 for early grades.

2 Doubles plus 1 addition
Exercise 2
What is 7 + 8?
Difficulty: Beginner Time: ~1 minute Skills: Doubles Plus 1 Strategy
Definition:

Doubles plus 1: Addition problems where one number is 1 more than the other

Note: This strategy uses the doubles fact and adds 1 more to the result.

Step-by-step doubles plus 1 method:
  1. Recognize that 8 is 1 more than 7
  2. Use the doubles fact: 7 + 7 = 14
  3. Add 1 more: 14 + 1 = 15
Original Problem
7 + 8
Doubles Plus 1
7 + 7 + 1
Solution
15
Step 1: Identify the relationship

8 is exactly 1 more than 7

Step 2: Use doubles fact

We know 7 + 7 = 14

Step 3: Add the extra one

Since 8 is 1 more than 7, add 1 to the doubles result: 14 + 1 = 15

7 + 8 = 15
Final answer:

7 + 8 = 15

Applied rules:

• Doubles plus 1: One number is exactly 1 more than the other

• Strategy: Use doubles fact and add 1

• Memory tip: This is the same as near doubles

Related Examples:
  • 6 + 7: Use 6 + 6 = 12, then 12 + 1 = 13
  • 8 + 9: Use 8 + 8 = 16, then 16 + 1 = 17
  • 5 + 6: Use 5 + 5 = 10, then 10 + 1 = 11
Quick Tips:
  • Look for numbers that are 1 apart
  • Always use the smaller number for the doubles fact
  • Add 1 to the doubles result
Frequently Asked Questions:

Q: What is doubles plus 1?
A: Addition problems where one number is 1 more than the other, like 7+8 or 9+10.

Q: How is this different from regular near doubles?
A: Doubles plus 1 is a specific case of near doubles where the difference is exactly 1.

3 Doubles minus 1 addition
Exercise 3
What is 9 + 8?
Difficulty: Beginner Time: ~1 minute Skills: Doubles Minus 1 Strategy
Definition:

Doubles minus 1: Addition problems where one number is 1 less than the other

Note: This strategy uses the larger number's doubles fact and subtracts 1 from the result.

Step-by-step doubles minus 1 method:
  1. Recognize that 8 is 1 less than 9
  2. Use the doubles fact: 9 + 9 = 18
  3. Subtract 1: 18 - 1 = 17
Original Problem
9 + 8
Doubles Minus 1
9 + 9 - 1
Solution
17
Step 1: Identify the relationship

8 is exactly 1 less than 9

Step 2: Use doubles fact

We know 9 + 9 = 18

Step 3: Subtract the difference

Since 8 is 1 less than 9, subtract 1 from the doubles result: 18 - 1 = 17

9 + 8 = 17
Final answer:

9 + 8 = 17

Applied rules:

• Doubles minus 1: One number is exactly 1 less than the other

• Strategy: Use the larger number's doubles fact and subtract 1

• Memory tip: This is the reverse of doubles plus 1

Related Examples:
  • 6 + 5: Use 6 + 6 = 12, then 12 - 1 = 11
  • 8 + 7: Use 8 + 8 = 16, then 16 - 1 = 15
  • 4 + 3: Use 4 + 4 = 8, then 8 - 1 = 7
Quick Tips:
  • Look for numbers that are 1 apart
  • Use the larger number for the doubles fact
  • Subtract 1 from the doubles result
Frequently Asked Questions:

Q: What is doubles minus 1?
A: Addition problems where one number is 1 less than the other, like 9+8 or 7+6.

Q: How do I solve doubles minus 1?
A: Use the doubles fact for the larger number and subtract 1.

Solutions: Exercises 4 to 5
4 Identifying doubles
Exercise 4
Is 6 + 6 a doubles fact? What is the answer?
Definition:

Identifying doubles: Recognizing when an addition problem has the same number twice

Note: Being able to identify doubles quickly helps with mental math strategies.

Step-by-step identification method:
  1. Look at both numbers in the addition problem
  2. Check if they are the same number
  3. If yes, it's a doubles fact
  4. Calculate: 6 + 6 = 12
Original Problem
6 + 6
Is it a double?
Yes
Solution
12
Step 1: Examine the numbers

Both numbers are 6

Step 2: Identify the pattern

Since both numbers are the same, this is a doubles fact

Step 3: Calculate

6 + 6 = 12

6 + 6 = 12
Final answer:

Yes, 6 + 6 is a doubles fact. The answer is 12.

Applied rules:

• Identification: Check if both addends are the same

• Pattern recognition: Doubles facts have identical addends

• Memory tip: Practice recognizing doubles patterns

Related Examples:
  • 5 + 5: Yes, doubles fact → 10
  • 7 + 7: Yes, doubles fact → 14
  • 4 + 5: No, not a doubles fact
Quick Tips:
  • Look for identical numbers in addition problems
  • Practice recognizing doubles quickly
  • Memorize doubles facts for mental math fluency
Frequently Asked Questions:

Q: How do I know if an addition problem is a doubles fact?
A: Check if both numbers being added are the same.

Q: What if the numbers are different?
A: Then it's not a doubles fact, but might be a near doubles fact.

5 Missing doubles
Exercise 5
What number added to itself equals 18?
Definition:

Missing doubles: Finding the number that, when doubled, equals a given sum

Note: This involves understanding the inverse of doubles facts.

Step-by-step missing doubles method:
  1. Think: ? + ? = 18, or ? × 2 = 18
  2. Find half of 18
  3. 18 ÷ 2 = 9
  4. Check: 9 + 9 = 18
Original Problem
? + ? = 18
Half of Total
18 ÷ 2 = 9
Solution
9
Step 1: Understand the problem

We need a number that when added to itself equals 18

Step 2: Use division

To find the number, divide 18 by 2: 18 ÷ 2 = 9

Step 3: Verify

Check: 9 + 9 = 18 ✓

9 + 9 = 18
Final answer:

The number is 9

Applied rules:

• Missing doubles: Find the number that when doubled equals the target

• Strategy: Divide the total by 2

• Verification: Always check by doubling the answer

Related Examples:
  • ? + ? = 14 → 14 ÷ 2 = 7 → 7 + 7 = 14
  • ? + ? = 16 → 16 ÷ 2 = 8 → 8 + 8 = 16
  • ? + ? = 12 → 12 ÷ 2 = 6 → 6 + 6 = 12
Quick Tips:
  • To find a missing double, divide the total by 2
  • Always verify by doubling your answer
  • This connects to division concepts
Frequently Asked Questions:

Q: How do I find missing doubles?
A: Divide the total by 2 to find the number that was doubled.

Q: What if the total is odd?
A: Odd totals cannot be doubles of whole numbers (e.g., nothing doubled equals 7).

Solutions: Exercises 6 to 10
6 Fact families
Exercise 6
If 8 + 8 = 16, what are the other three facts in this fact family?
Definition:

Fact family: A group of related addition and subtraction facts using the same numbers

Note: Doubles create special fact families with only two unique addition/subtraction facts.

Step-by-step fact family method:
  1. Start with the doubles fact: 8 + 8 = 16
  2. Write the related addition fact: 8 + 8 = 16 (same as first)
  3. Write the first subtraction fact: 16 - 8 = 8
  4. Write the second subtraction fact: 16 - 8 = 8 (same as first subtraction)
Given Fact
8 + 8 = 16
Related Subtraction
16 - 8 = 8
Complete Family
8+8=16, 16-8=8
Step 1: Identify the numbers involved

We have 8, 8, and 16 in our fact family

Step 2: Write the addition facts

8 + 8 = 16 (there's only one unique addition fact with doubles)

Step 3: Write the subtraction facts

16 - 8 = 8 (there's only one unique subtraction fact with doubles)

Step 4: Verify the relationships

8 + 8 = 16 ✓ and 16 - 8 = 8 ✓

The complete fact family: 8 + 8 = 16 and 16 - 8 = 8
Final answer:

The other facts in the family are: 16 - 8 = 8

Applied rules:

• Fact family: Doubles facts create special families with only 2 unique facts

• Inverse operations: Addition and subtraction are related

• Verification: Always check relationships between facts

Related Examples:
  • 5 + 5 = 25? No, 5 + 5 = 10, so: 5 + 5 = 10, 10 - 5 = 5
  • 7 + 7 = 14, so: 14 - 7 = 7
  • 4 + 4 = 8, so: 8 - 4 = 4
Quick Tips:
  • Doubles fact families only have 2 unique facts instead of 4
  • The answer to the subtraction is always the same as the addend
  • Use fact families to connect addition and subtraction
Frequently Asked Questions:

Q: Why do doubles fact families only have 2 facts?
A: Because both addends are the same, there's only one addition and one subtraction fact.

Q: How do fact families help with math?
A: They show the connection between addition and subtraction.

7 Word problem
Exercise 7
Lisa has 13 stickers. She gives 6 to her friend. How many stickers does Lisa have now?
Definition:

Word problem: A mathematical problem presented in a story format requiring doubles strategy

Note: This problem can be solved using the doubles fact 6 + 6 = 12.

Step-by-step word problem method:
  1. Identify the numbers: 13 stickers - 6 stickers given away
  2. Recognize this is related to the doubles fact 6 + 6 = 12
  3. Since 13 = 12 + 1, then 13 - 6 = (12 - 6) + 1
  4. Since 12 - 6 = 6, then 13 - 6 = 6 + 1 = 7
Starting Amount
13 stickers
Amount Given Away
6 stickers
Using Doubles Strategy
13 = 12 + 1, so 13-6 = (12-6)+1 = 6+1 = 7
Remaining Amount
7 stickers
Step 1: Identify what we know

Lisa has 13 stickers and gives away 6

Step 2: Recognize the doubles connection

We know 6 + 6 = 12, and 13 = 12 + 1

Step 3: Apply the strategy

13 - 6 = (12 + 1) - 6 = (12 - 6) + 1 = 6 + 1 = 7

Step 4: Answer the question

Lisa has 7 stickers now

Lisa has 7 stickers now
Final answer:

Lisa has 7 stickers now

Applied rules:

• Problem solving: Identify key information

• Doubles connection: Use known doubles facts to solve subtraction

• Decomposition: Break 13 into 12 + 1 to use doubles fact

• Contextual answer: Include units in your answer

Related Examples:
  • Tom had 15 pencils, lost 7 → 14 - 7 = 7, so 15 - 7 = 8
  • Maria had 14 cookies, ate 6 → 12 - 6 = 6, so 14 - 6 = 8
  • There were 17 birds, 8 flew away → 16 - 8 = 8, so 17 - 8 = 9
Quick Tips:
  • Look for connections to doubles facts in word problems
  • Use decomposition to make problems fit doubles patterns
  • Always answer with a complete sentence
Frequently Asked Questions:

Q: How do I use doubles in word problems?
A: Look for numbers that are close to doubles facts and adjust accordingly.

Q: What if the numbers don't match a doubles fact exactly?
A: Decompose the larger number to include a doubles fact.

8 Patterns
Exercise 8
What pattern do you notice in these problems: 3 + 3 = 6, 4 + 4 = 8, 5 + 5 = 10?
Definition:

Doubles pattern: A consistent relationship in doubles facts

Note: Doubles always result in even numbers and follow a predictable pattern.

Step-by-step pattern recognition method:
  1. Look at the first numbers: 3, 4, 5 (increasing by 1)
  2. Look at the answers: 6, 8, 10 (even numbers increasing by 2)
  3. Notice: doubles always result in even numbers
  4. Pattern: number doubled = number × 2
Pattern Sequence
3+3=6, 4+4=8, 5+5=10
Pattern Rule
Doubles equal number × 2
Next in Pattern
6+6=12
Step 1: Analyze the inputs

The numbers being doubled: 3, 4, 5 (each increases by 1)

Step 2: Analyze the outputs

The results: 6, 8, 10 (each increases by 2, all even)

Step 3: Identify the pattern

Doubling any number equals that number times 2

Step 4: Predict next

Following the pattern: 6 + 6 = 12

Doubles always result in even numbers and equal the number × 2
Final answer:

When you double a number, you get an even number that equals the original number times 2.

Applied rules:

• Pattern recognition: Doubles always produce even numbers

• Mathematical relationship: Doubling equals multiplying by 2

• Generalization: n + n = 2n for any number n

Related Examples:
  • 6 + 6 = 12, 7 + 7 = 14, 8 + 8 = 16 (pattern continues)
  • All results are even numbers
  • Each result is double the input number
Quick Tips:
  • Doubles always result in even numbers
  • Doubling is the same as multiplying by 2
  • Recognizing patterns helps with memorization
Frequently Asked Questions:

Q: Why do doubles always result in even numbers?
A: Because you're adding the same number twice, which is the same as multiplying by 2.

Q: What's the pattern in doubles?
A: Any number doubled equals that number times 2.

9 Mixed practice
Exercise 9
Solve: 9 + 9 - 3
Definition:

Mixed operations: Problems combining addition and subtraction using doubles facts

Note: When addition and subtraction are in the same problem, we solve from left to right.

Step-by-step mixed operations method:
  1. Solve operations from left to right
  2. First: 9 + 9 = 18 (using doubles fact)
  3. Then: 18 - 3 = 15
Original Problem
9 + 9 - 3
First Operation
9 + 9 = 18
Second Operation
18 - 3 = 15
Final Answer
15
Step 1: Solve the first operation (left to right)

9 + 9 = 18 (using doubles fact)

Step 2: Solve the second operation

Now we have 18 - 3 = 15

Step 3: Final answer

9 + 9 - 3 = 15

9 + 9 - 3 = 15
Final answer:

15

Applied rules:

• Order of operations: For addition and subtraction, go left to right

• Sequential solving: Solve one operation at a time

• Doubles integration: Use known doubles facts in multi-step problems

• Verification: Check each step as you go

Related Examples:
  • 7 + 7 + 2: First 7 + 7 = 14, then 14 + 2 = 16
  • 8 + 8 - 5: First 8 + 8 = 16, then 16 - 5 = 11
  • 6 + 6 + 4: First 6 + 6 = 12, then 12 + 4 = 16
Quick Tips:
  • For mixed addition and subtraction, work left to right
  • Use doubles facts when you see repeated numbers
  • Keep track of your intermediate results
Frequently Asked Questions:

Q: Which operation do I do first in mixed problems?
A: For addition and subtraction, always work from left to right.

Q: How do I use doubles in mixed operations?
A: Solve the doubles part first, then continue with the remaining operations.

10 Advanced near doubles
Exercise 10
What is 16 - 9?
Definition:

Advanced near doubles: Subtraction problems where the minuend is close to double the subtrahend

Note: This problem can be solved using the doubles fact 9 + 9 = 18.

Step-by-step advanced near doubles method:
  1. Think about the doubles fact: 9 + 9 = 18
  2. Notice that 16 is 2 less than 18
  3. Since 18 - 9 = 9, then 16 - 9 = 7 (two less)
Original Problem
16 - 9
Reference Doubles
18 - 9 = 9
Adjustment
16 is 2 less than 18
Solution
7
Step 1: Think about the related doubles fact

We know 9 + 9 = 18, so 18 - 9 = 9

Step 2: Compare to our problem

Our problem is 16 - 9, which is 2 less than 18 - 9

Step 3: Apply the adjustment

Since 16 is 2 less than 18, our answer is 2 less than 9: 9 - 2 = 7

Step 4: Verify

7 + 9 = 16 ✓

16 - 9 = 7
Final answer:

7

Applied rules:

• Advanced near doubles: Use related doubles facts to solve

• Adjustment strategy: Modify the doubles result based on differences

• Verification: Always check with the inverse operation

Related Examples:
  • 14 - 7: Use 14 - 7 = 7 (exact doubles)
  • 13 - 6: Use 12 - 6 = 6, then 13 - 6 = 7 (1 more)
  • 17 - 9: Use 18 - 9 = 9, then 17 - 9 = 8 (1 less)
Quick Tips:
  • Look for doubles facts that are close to your problem
  • Adjust the doubles result based on the difference
  • Practice connecting addition and subtraction facts
Frequently Asked Questions:

Q: How do I solve advanced near doubles subtraction?
A: Use the closest doubles fact and adjust the result based on the difference.

Q: What if the numbers aren't close to doubles?
A: Use other strategies like counting back or making tens.

Detailed Summary: Using Doubles and Near Doubles
Key Concepts and Definitions:

Doubles Facts: Addition problems where the same number is added to itself (e.g., 5 + 5 = 10). These are foundational for mental math and help with other addition strategies.

Near Doubles: Addition problems where the numbers are consecutive or differ by 1 (e.g., 5 + 6 = 11). This includes both doubles plus 1 and doubles minus 1.

Doubles Plus 1: Addition problems where one number is exactly 1 more than the other (e.g., 5 + 6 = 11). This is solved by using the smaller number's doubles fact and adding 1.

Doubles Minus 1: Addition problems where one number is exactly 1 less than the other (e.g., 6 + 5 = 11). This is solved by using the larger number's doubles fact and subtracting 1.

Fact Families: Groups of related addition and subtraction facts that use the same numbers, including doubles relationships.

Worksheets: Structured practice sheets containing multiple problems designed to reinforce doubles and near doubles skills.

Core Rules and Principles:
  1. Doubles Rule: When you double a number, the result is always even and equals the number × 2.
  2. Doubles Plus 1 Rule: Use the smaller number's doubles fact and add 1 more to the result.
  3. Doubles Minus 1 Rule: Use the larger number's doubles fact and subtract 1 from the result.
  4. Sequential Addition/Subtraction: When solving problems with multiple operations, work from left to right.
  5. Pattern Recognition: Doubles follow predictable patterns that aid in memorization.
  6. Worksheet Structure: Practice sheets typically progress from simple to complex problems.
Effective Strategies:
  • Doubles Strategy: Memorize doubles facts for quick recall
  • Doubles Plus 1: Use smaller number's doubles fact plus 1
  • Doubles Minus 1: Use larger number's doubles fact minus 1
  • Pattern Recognition: Look for consecutive or repeated numbers
  • Decomposition: Break numbers into parts that include doubles facts
Common Mistakes to Avoid:
  • Confusing doubles with other addition facts
  • Forgetting that doubles always result in even numbers
  • Not recognizing near doubles opportunities
  • Mixing up when to add versus subtract
  • Choosing the wrong number for the doubles fact
  • Rushing through worksheet problems without verification
Memory Techniques:
  • Practice doubles facts daily until automatic
  • Use visual aids like dot patterns or counters
  • Create rhymes or songs for difficult facts
  • Connect doubles to real-world situations
Worksheet Success Tips:
  • Work through problems systematically from top to bottom
  • Read all instructions carefully before starting
  • Check your work as you progress through the worksheet
  • Take breaks if you feel overwhelmed
  • Review incorrect answers to understand mistakes
  • Use scratch paper if needed for working out problems
Progressive Examples:
  • Basic Doubles: 2 + 2 = 4, 3 + 3 = 6, 4 + 4 = 8
  • Doubles Plus 1: 3 + 4 = 7, 5 + 6 = 11, 7 + 8 = 15
  • Doubles Minus 1: 4 + 3 = 7, 6 + 5 = 11, 8 + 7 = 15
  • Near Doubles: 4 + 5 = 9, 7 + 6 = 13, 9 + 8 = 17
  • Advanced Applications: 16 - 9 (using 9 + 9 = 18), 13 - 6 (using 6 + 6 = 12)

Key Takeaways for Memorization

  • Doubles facts form the foundation for other addition and subtraction strategies
  • Doubles always result in even numbers
  • Doubles Plus 1 uses the smaller number's doubles fact plus 1
  • Doubles Minus 1 uses the larger number's doubles fact minus 1
  • Near doubles always result in odd numbers
  • Recognizing patterns speeds up computation
  • Practice leads to automaticity with basic facts
  • Understanding relationships helps with problem-solving
  • Worksheets provide structured practice for skill development
  • Regular practice with worksheets builds fluency over time
Key Laws, Methods, Rules, and Definitions
n + n = 2n (doubles), n + (n+1) = 2n+1 (near doubles)
Doubles and Near Doubles Structure
Key definitions:

Doubles: Addition of the same number to itself (n + n)

Near Doubles: Addition of consecutive numbers where the second is 1 more (n + (n+1))

Doubles Subtraction: Subtraction where the subtrahend is half the minuend (2n - n = n)

Complete methodology:
  1. Identify the pattern: Recognize doubles, near doubles, or doubles subtraction
  2. Select the strategy: Use appropriate doubles-based method
  3. Apply the method: Execute the chosen strategy systematically
  4. Verify the result: Check by counting or using inverse operations
Tip 1: Memorize doubles facts (1+1 through 10+10) for quick recall.
Tip 2: Use doubles facts to solve near doubles quickly.
Tip 3: Doubles always result in even numbers.
Tip 4: Use the smaller number for doubles plus 1, larger number for doubles minus 1.
Common errors: Confusing doubles with other facts, mixing up plus/minus strategies.
Fluency building: Daily practice, flashcards, math games.
Rules to remember:

• Doubles facts are foundational for mental math fluency

• Doubles Plus 1 uses smaller number's doubles fact plus 1

• Doubles Minus 1 uses larger number's doubles fact minus 1

• Doubles subtraction always results in the same number as the subtrahend

• Doubles always result in even numbers

• Near doubles always result in odd numbers

• Pattern recognition improves computational speed

• Verification ensures accuracy

Rules and Methods for Doubles and Near Doubles
n + n = 2n, n + (n+1) = 2n+1, (n+1) + n = 2n+1
Core Formulas
Formula 1
Doubles
n + n = 2n
Formula 2
Doubles Plus 1
n + (n+1) = 2n+1
Formula 3
Doubles Minus 1
(n+1) + n = 2n+1
Formula 4
Doubles Subtraction
2n - n = n

Key Takeaways

  • Doubles facts form the foundation for other addition strategies
  • Doubles Plus 1 uses the smaller number's doubles fact plus 1
  • Doubles Minus 1 uses the larger number's doubles fact minus 1
  • Near doubles always result in odd numbers
  • Recognizing patterns accelerates problem-solving
  • Practice leads to automaticity with basic facts
  • Worksheets provide structured practice for skill development
  • Understanding relationships helps with problem-solving

Questions & Answers

Question: Why are doubles and near doubles facts so important in math?

Answer: Doubles and near doubles facts are extremely important because they:

  • Build a strong foundation for mental math
  • Help with solving other addition and subtraction problems efficiently
  • Lead to faster computation and greater accuracy
  • Develop number sense and pattern recognition
  • Prepare students for multiplication concepts
  • Provide efficient strategies for solving problems within 20

Once you know your doubles facts automatically, you can use them to solve many other addition and subtraction problems quickly. For example, if you know 8 + 8 = 16, you can easily figure out 8 + 9 = 17.

Question: My child struggles with near doubles. How can I help them master these facts?

Answer: Here are effective strategies to help with near doubles:

  • Build on doubles: Make sure your child knows doubles facts well first
  • Use visual aids: Show with objects that 7 + 8 is the same as 7 + 7 + 1
  • Practice sequentially: Start with smaller numbers (3+4) before larger ones (8+9)
  • Make connections: Explain that near doubles are just doubles plus or minus 1
  • Play games: Use dice or cards to generate near doubles problems
  • Use worksheets: Provide structured practice with progressive difficulty

Regular practice with concrete examples and worksheets will help your child see the relationship and develop fluency with near doubles facts.

Question: How can I remember all these doubles and near doubles facts?

Answer: Here are memory techniques for doubles and near doubles:

  • Practice regularly: Do a few minutes each day using worksheets
  • Use rhythm and rhyme: "6 + 6 is 12, that's a fact divine!"
  • Visualize: Picture two equal groups
  • Connect to real life: Eggs come in doubles (6+6=12), wheels on cars (2+2=4)
  • Use flashcards: Practice until automatic
  • Use patterns: Notice that doubles are always even, near doubles are always odd

Remember, doubles always result in even numbers, and near doubles always result in odd numbers. The more you practice with worksheets, the easier they become!

Math Glossary

Doubles Facts
Addition problems where the same number is added to itself (e.g., 5 + 5 = 10).
Doubles Plus 1
Addition problems where one number is exactly 1 more than the other (e.g., 5 + 6).
Doubles Minus 1
Addition problems where one number is exactly 1 less than the other (e.g., 6 + 5).
Near Doubles
Addition problems with consecutive numbers (e.g., 5 + 6).
Doubles Subtraction
Subtraction problems where the subtrahend is half of the minuend (e.g., 12 - 6).
Fact Family
A group of related addition and subtraction facts using the same numbers.
Worksheet
A structured practice sheet containing multiple math problems designed to reinforce specific skills through repetition and practice.
Pattern Recognition
Identifying consistent relationships between numbers in mathematical operations.

Elementary Math Educational Team

Certified Elementary Teachers & Curriculum Specialists

Our team of experienced elementary math teachers and curriculum developers creates research-based, student-friendly doubles and near doubles resources. All content is aligned with Common Core State Standards for Mathematics and reviewed by mathematics education experts to ensure accuracy and pedagogical effectiveness for Grade 2 learners. Our worksheet resources are designed to provide structured practice for developing fluency with doubles and near doubles facts.