Counting Worksheets 11-20 in Grade 1

Master counting worksheets 11-20: number recognition, ordering, and visual counting strategies through these 3 detailed exercises.

Solution: Exercises 1 to 3
1 Number Recognition Worksheet
Exercise 1
Circle all the number 15s in this worksheet: 12, 15, 18, 15, 11, 15, 19, 15, 13
Definition:

Number Recognition: Identifying specific numbers among others

Recognition method:
  1. Look at each number in the sequence
  2. Find the target number (15)
  3. Mark or circle each occurrence
Sequence
12, 15, 18, 15, 11, 15, 19, 15, 13
Target
15
Occurrences
4 times
Step 1: Scan the sequence

Go through each number: 12, 15, 18, 15, 11, 15, 19, 15, 13

Step 2: Identify target number

Look for number 15 in the sequence

Step 3: Mark occurrences

Circle each 15: 12, 15, 18, 15, 11, 15, 19, 15, 13

11
12
15
18
15
11
15
19
15
13
Found number 15 four times
Final answer:

Circle these numbers: 12, 15, 18, 15, 11, 15, 19, 15, 13

Applied rules:

• Number Recognition: Identify specific numbers in a sequence

• Attention to Detail: Carefully scan each number

• Visual Marking: Clearly indicate the target numbers

2 Ordering Numbers Worksheet
Exercise 2
Put these numbers in order from smallest to biggest: 17, 12, 19, 14, 15
Definition:

Number Ordering: Arranging numbers in ascending or descending order

Given
17, 12, 19, 14, 15
Ordered
12, 14, 15, 17, 19
Result
Smallest to Biggest
Step 1: Identify all numbers

We have: 17, 12, 19, 14, 15

Step 2: Find the smallest number

Compare: 12 is the smallest

Step 3: Find the next smallest

From remaining: 14 is the next smallest

Step 4: Continue ordering

Next: 15, then 17, then 19

Step 5: Final order

12, 14, 15, 17, 19

10
12
13
14
15
16
17
18
19
20
12, 14, 15, 17, 19
Final answer:

Numbers in order: 12, 14, 15, 17, 19

Applied rules:

• Ascending Order: Smallest to largest numbers

• Comparison: Compare each number to find the order

• Worksheet completion: Write numbers in correct order

3 Counting Objects Worksheet
Exercise 3
Count the objects below: 🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎. Write the total number.
Definition:

Visual Counting: Counting objects to determine quantity

Objects
🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎
Count
1,2,3,...,16
Total
16
Step 1: Identify each object

Count each apple: 🍎, 🍎, 🍎, ..., 🍎

Step 2: Count sequentially

Count: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16

Step 3: Write the total

There are 16 apples

🍎
🍎
🍎
🍎
🍎
🍎
🍎
🍎
🍎
🍎
🍎
🍎
🍎
🍎
🍎
🍎
10
11
12
13
14
15
16
17
18
19
20
16
Final answer:

Total number: 16

Applied rules:

• Visual Counting: Count each object individually

• Sequential Counting: Count in order from 1 to total

• Worksheet completion: Write the total number

Detailed Summary: Counting Worksheets 11-20

Definitions of Key Concepts

  • Counting: The process of assigning numbers to objects in sequence to determine quantity
  • Number Recognition: Identifying specific numbers among others
  • Number Ordering: Arranging numbers in ascending (smallest to largest) or descending (largest to smallest) order
  • Worksheet: A structured paper or digital document with exercises to practice skills
  • Visual Counting: Using objects or drawings to count
  • Number Line: A visual representation of numbers arranged in order
  • Ascending Order: Numbers arranged from smallest to largest
  • Descending Order: Numbers arranged from largest to smallest

Core Rules and Principles

  • Sequential Rule: Numbers in counting follow a specific order from 11 to 20
  • Order Rule: In ascending order, each number is greater than the previous
  • Recognition Rule: Each number has a unique shape and value
  • Comparison Rule: Numbers can be compared to determine which is larger or smaller
  • Verification Rule: Always check your work by recounting

Step-by-Step Methods

  • Number Recognition Method:
    1. Read the instructions carefully
    2. Identify the target number
    3. Scan through the worksheet systematically
    4. Mark or circle each occurrence
    5. Count the total occurrences
  • Number Ordering Method:
    1. List all the numbers given
    2. Compare each number to find the smallest
    3. Place the smallest first
    4. Repeat for remaining numbers
    5. Verify the order is correct
  • Visual Counting Method:
    1. Identify each object
    2. Count sequentially from 1
    3. Write the total number
    4. Complete the worksheet task

Examples (Simple → Advanced)

Simple: Find number 13 in: 11, 13, 15, 17, 19
Intermediate: Order numbers: 17, 12, 15 → 12, 15, 17
Advanced: Count 16 objects and write the total

Tips and Tricks

  • Read Instructions: Always read the worksheet directions carefully
  • Use Number Lines: Visualize numbers on a line from 11 to 20
  • Group by Tens: Think of numbers in relation to 10 (10+1, 10+2, etc.)
  • Check Your Work: Count again to verify accuracy
  • Work Systematically: Go through worksheets in order
  • Practice Patterns: Notice number patterns and relationships

Common Pitfalls

  • Misreading Instructions: Not following worksheet directions correctly
  • Skipping Numbers: Missing a number in the sequence
  • Wrong Order: Placing numbers in incorrect sequence
  • Counting Errors: Miscounting due to rushing
  • Direction Confusion: Ordering from largest to smallest when asked for smallest to largest
  • Verification Neglect: Not checking work after completion

Key Notes for Memorization

  • Number Recognition: Each number has a unique appearance
  • Ascending Order: Numbers get bigger (11, 12, 13, ..., 20)
  • Descending Order: Numbers get smaller (20, 19, 18, ..., 11)
  • Verification: Always count to check your work
  • Worksheet Success: Read instructions, work carefully, check answers
  • Pattern Recognition: Notice relationships between numbers
Counting Worksheet Rules and Methods
11, 12, 13, ..., 20
Number Sequence
A < B < C
Ascending Order
Strategy 1
Recognize
Identify specific numbers
Strategy 2
Order
Arrange from smallest to biggest
Strategy 3
Count
Use visual objects
Key Concept: Worksheets provide structured practice for number skills.
Visual Strategy: Use objects and drawings to represent numbers.
Worksheet Completion Strategies
A > B > C
Descending Order
10 + 1 = 11
Addition
Worksheet components:

Instructions: Directions explaining what to do

Numbers: Values to recognize, order, or count

Answer spaces: Areas to write or draw responses

Worksheet completion methods:
  1. Read: Carefully read the instructions
  2. Understand: Identify what is being asked
  3. Plan: Decide on the approach
  4. Solve: Work through the problem
  5. Verify: Check your work
Tip 1: Always read the entire worksheet before starting.
Tip 2: Use scratch paper for working out problems.
Tip 3: Keep your work neat and organized.
Tip 4: Ask for help if you don't understand the instructions.
Number Sense: Understanding the value and relationships of numbers.
Following Directions: Ability to understand and execute instructions.
Worksheet completion facts:

• Always read instructions first

• Show your work when possible

• Check your answers before submitting

• Use pencil so you can erase mistakes

• Work neatly and keep your paper clean

• Take your time to avoid errors

• Practice regularly to build fluency

Questions & Answers

Question: I get confused with numbers like 16 and 17. How do I tell them apart?

Answer: Here are ways to distinguish similar numbers:

  • Look at the ones digit: 16 ends in 6, 17 ends in 7
  • Think of the sequence: 16 comes before 17 (like alphabet order)
  • Count on fingers: Show 6 fingers vs 7 fingers
  • Use a number line: See 16 and 17 next to each other

Practice saying them aloud: "six-teen" vs "seven-teen" to hear the difference.

Question: My child struggles with ordering numbers 11-20. How can I help them practice?

Answer: Here are effective ways to practice ordering numbers 11-20:

Activities:

  • Use number cards 11-20 to physically arrange in order
  • Play "Number Line Hop" games with numbers 11-20
  • Use real-life examples: ages, temperatures, scores
  • Practice skip counting by 2s starting from different numbers
  • Compare numbers by focusing on the ones digit when tens are the same

Progression:

  • Start with smaller ranges: 11-15, then 15-20
  • Focus on comparing the ones digit since tens are the same
  • Use visual aids like number lines or charts

Regular practice with visual aids helps build confidence with teen numbers.

Question: Why are numbers 11-19 called "teen" numbers?

Answer: Numbers 11-19 are called "teen" numbers because:

Historical origin:

  • "Teen" comes from old English meaning "ten"
  • These numbers are "ten plus something more"
  • 11 = 10 + 1 ("one ten plus one")
  • 12 = 10 + 2 ("one ten plus two")

Examples:

  • 13 = 10 + 3 → "thirteen" (three-ten)
  • 14 = 10 + 4 → "fourteen" (four-ten)
  • 15 = 10 + 5 → "fifteen" (five-ten)
  • And so on up to 19 = 10 + 9 → "nineteen" (nine-ten)

This naming pattern helps us understand that these numbers are made up of 10 plus more ones!