Solved Exercises on Addition Within 10 Word Problems in Grade 1

Master addition within 10 word problems: problem-solving strategies, visual representations, and mental math techniques through these 5 detailed exercises.

Solution: Exercises 1 to 3
1 Word Problem: Apples
Exercise 1
Sarah has 3 red apples. Her mom gives her 4 more green apples. How many apples does Sarah have now?
Definition:

Word Problem: A mathematical problem presented in sentence form that requires reading comprehension and mathematical reasoning to solve.

Word Problem Solving Method:
  1. Read the problem carefully
  2. Identify the numbers in the problem
  3. Find action words that tell you to add
  4. Write the equation
  5. Solve the equation
  6. Check your answer
🍎
3
red apples
➕
+
🍏
4
green apples
=
?
3 + 4 = 7
Sarah has 7 apples
Step 1: Read the problem

"Sarah has 3 red apples. Her mom gives her 4 more green apples. How many apples does Sarah have now?"

Step 2: Identify the numbers

We see the numbers 3 and 4 in the problem.

Step 3: Find action words

"gives her 4 more" tells us to add.

Step 4: Write the equation

3 + 4 = ?

Step 5: Solve the equation

3 + 4 = 7

Step 6: Check your answer

Does 7 make sense? Yes, Sarah had 3 and got 4 more, so 7 total is reasonable.

Sarah has 7 apples
Final answer:

Sarah has 7 apples

Applied rules:

• Action Words: "more," "gives," "gets" often mean addition

• Context Clues: Look for what is happening to the numbers

• Reasonableness: Check if the answer makes sense

2 Word Problem: Toys
Exercise 2
Tom has 2 toy cars. His friend brings 5 more toy cars to play with. How many toy cars are there altogether?
Definition:

Action Words: Words in word problems that indicate which mathematical operation to use (add, subtract, multiply, divide).

🚗
2
toy cars
➕
+
🚗
5
more cars
=
?
2 + 5 = 7
There are 7 toy cars
Step 1: Read the problem

"Tom has 2 toy cars. His friend brings 5 more toy cars to play with. How many toy cars are there altogether?"

Step 2: Identify the numbers

We see the numbers 2 and 5 in the problem.

Step 3: Find action words

"brings 5 more" and "altogether" tell us to add.

Step 4: Write the equation

2 + 5 = ?

Step 5: Solve the equation

2 + 5 = 7

Step 6: Check your answer

Does 7 make sense? Yes, Tom had 2 and his friend brought 5 more, so 7 total is reasonable.

There are 7 toy cars
Final answer:

There are 7 toy cars

Applied rules:

• Action Words: "more," "altogether," "total" often mean addition

• Context Clues: Look for what is happening to the numbers

• Reasonableness: Check if the answer makes sense

3 Word Problem: Flowers
Exercise 3
Emma picked 4 red flowers from the garden. Then she picked 3 yellow flowers. How many flowers did Emma pick in all?
Definition:

Problem Context: The real-world situation described in the word problem that gives meaning to the numbers and operations.

🌸
4
red flowers
➕
+
🌼
3
yellow flowers
=
?
4 + 3 = 7
Emma picked 7 flowers
Step 1: Read the problem

"Emma picked 4 red flowers from the garden. Then she picked 3 yellow flowers. How many flowers did Emma pick in all?"

Step 2: Identify the numbers

We see the numbers 4 and 3 in the problem.

Step 3: Find action words

"picked 3 more" and "in all" tell us to add.

Step 4: Write the equation

4 + 3 = ?

Step 5: Solve the equation

4 + 3 = 7

Step 6: Check your answer

Does 7 make sense? Yes, Emma picked 4 and then 3 more, so 7 total is reasonable.

Emma picked 7 flowers
Final answer:

Emma picked 7 flowers

Applied rules:

• Action Words: "more," "in all," "total" often mean addition

• Context Clues: Look for what is happening to the numbers

• Reasonableness: Check if the answer makes sense

Key Concepts and Memory Aids for Word Problem Solving
Word Problem → Identify Numbers → Find Action → Equation → Solution
Word Problem Solving Formula
Action Words
more, total, altogether
Mean addition
Problem Steps
Read → Identify → Solve → Check
Systematic approach
Context Clues
Real-world situations
Give meaning to numbers
Key definitions:

Word Problem: A mathematical problem presented in sentence form that requires reading comprehension and mathematical reasoning to solve.

Action Words: Words that indicate which mathematical operation to use (add, subtract, multiply, divide).

Problem Context: The real-world situation described in the word problem that gives meaning to the numbers and operations.

Reasonableness: Checking if the answer makes sense in the context of the problem.

Complete methodology:
  1. Read carefully: Understand the whole problem
  2. Identify numbers: Find the numbers in the problem
  3. Find action words: Look for words that tell you what to do
  4. Write equation: Convert words to math symbols
  5. Solve: Do the math calculation
  6. Check: Make sure the answer makes sense
Tip 1: Underline or circle the numbers in the problem.
Tip 2: Look for action words like "more," "total," "altogether."
Tip 3: Draw a picture to help visualize the problem.
Tip 4: Ask yourself "Does my answer make sense?"
Common errors: Misreading numbers, missing action words, not checking reasonableness, confusing addition with subtraction.
Success strategies: Read twice, identify key words, draw pictures, check answers, practice regularly.
Core principles to remember:

• Action Words: "more," "total," "altogether," "in all" often mean addition

• Context Matters: The story gives meaning to the numbers

• Check Reasonableness: Does the answer make sense?

• Systematic Approach: Follow the same steps every time

Solution: Exercises 4 to 5
4 Word Problem: Birds
Exercise 4
There were 6 birds sitting on a branch. 2 more birds flew up to join them. How many birds are on the branch now?
Definition:

Joining Context: Problems where things come together or are added to an existing group.

🐦
6
birds on branch
➕
+
🐦
2
more birds
=
?
6 + 2 = 8
There are 8 birds
Step 1: Read the problem

"There were 6 birds sitting on a branch. 2 more birds flew up to join them. How many birds are on the branch now?"

Step 2: Identify the numbers

We see the numbers 6 and 2 in the problem.

Step 3: Find action words

"2 more birds flew up to join them" tells us to add.

Step 4: Write the equation

6 + 2 = ?

Step 5: Solve the equation

6 + 2 = 8

Step 6: Check your answer

Does 8 make sense? Yes, there were 6 birds and 2 more joined, so 8 total is reasonable.

There are 8 birds on the branch
Final answer:

There are 8 birds on the branch

Applied rules:

• Action Words: "more," "join" often mean addition

• Context Clues: Look for what is happening to the numbers

• Reasonableness: Check if the answer makes sense

5 Word Problem: Cookies
Exercise 5
Mom baked 3 chocolate chip cookies yesterday. Today she baked 5 sugar cookies. How many cookies did mom bake in all?
Definition:

Cumulative Context: Problems where different amounts are combined over time or from different sources.

🍪
3
chocolate cookies
➕
+
🍪
5
sugar cookies
=
?
3 + 5 = 8
Mom baked 8 cookies
Step 1: Read the problem

"Mom baked 3 chocolate chip cookies yesterday. Today she baked 5 sugar cookies. How many cookies did mom bake in all?"

Step 2: Identify the numbers

We see the numbers 3 and 5 in the problem.

Step 3: Find action words

"bake in all" tells us to add.

Step 4: Write the equation

3 + 5 = ?

Step 5: Solve the equation

3 + 5 = 8

Step 6: Check your answer

Does 8 make sense? Yes, mom baked 3 yesterday and 5 today, so 8 total is reasonable.

Mom baked 8 cookies in all
Final answer:

Mom baked 8 cookies in all

Applied rules:

• Action Words: "in all," "total" often mean addition

• Context Clues: Look for what is happening to the numbers

• Reasonableness: Check if the answer makes sense

Detailed Summary: Addition Within 10 Word Problems
Read → Identify → Action → Equation → Solve → Check
Word Problem Solving Formula
Key definitions:

Word Problem: A mathematical problem presented in sentence form that requires reading comprehension and mathematical reasoning to solve.

Action Words: Words that indicate which mathematical operation to use (add, subtract, multiply, divide).

Problem Context: The real-world situation described in the word problem that gives meaning to the numbers and operations.

Reasonableness: Checking if the answer makes sense in the context of the problem.

Core methods and procedures:
  1. Read carefully: Understand the whole problem
  2. Identify numbers: Find the numbers in the problem
  3. Find action words: Look for words that tell you what to do
  4. Write equation: Convert words to math symbols
  5. Solve: Do the math calculation
  6. Check: Make sure the answer makes sense
Tip 1: Always read the problem twice to make sure you understand it.
Tip 2: Circle the numbers and underline the action words.
Tip 3: Draw a picture to help visualize the problem.
Tip 4: Ask yourself "Does my answer make sense?"
Tip 5: Practice with different types of word problems regularly.
Common errors: Misreading numbers, missing action words, not checking reasonableness, confusing addition with subtraction, rushing through without understanding.
Memory aids: "Read, find numbers, look for action words, write equation, solve, check" and "What happens to the numbers?"
Core rules and principles:

• Action Words: "more," "total," "altogether," "in all" often mean addition

• Context Matters: The story gives meaning to the numbers

• Check Reasonableness: Does the answer make sense?

• Systematic Approach: Follow the same steps every time

• Visual Representation: Draw pictures to help understand

Concrete Examples

Simple Examples:

  • 2 + 1 = 3 (2 cats and 1 dog make 3 pets)
  • 3 + 2 = 5 (3 apples and 2 oranges make 5 fruits)
  • 1 + 4 = 5 (1 bird and 4 fish make 5 animals)

Advanced Examples:

  • 4 + 3 = 7 (4 books and 3 pencils make 7 school supplies)
  • 5 + 2 = 7 (5 red blocks and 2 blue blocks make 7 blocks total)
  • 3 + 4 = 7 (3 girls and 4 boys make 7 children)

Questions & Answers

Question: My child struggles to identify which operation to use in word problems. How can I help them?

Answer: This is a very common challenge! Here are strategies to help your child identify operations:

  • Create a "word wall" of action words: "more," "total," "altogether," "in all" for addition
  • Practice with simple problems that focus on action words first
  • Act out the problems with real objects to understand the context
  • Use color-coding: highlight numbers in one color, action words in another

Start with problems that have clear action words and gradually introduce more complex language. The key is to help your child connect the language to the mathematical operation through repeated exposure and practice.

Focus on the question "What is happening to the numbers?" - are they getting bigger (addition) or smaller (subtraction)?

Question: How can I help my students visualize word problems better?

Answer: Visualization is crucial for word problem success! Here are effective strategies:

  • Encourage students to draw simple pictures representing the problem
  • Use manipulatives like blocks, counters, or toys to act out problems
  • Create visual models like bar diagrams or number bonds
  • Have students create "math movies" in their minds of what's happening
  • Use consistent visual templates for different problem types

Consider creating problem-solving mats with spaces for drawing, writing the equation, and showing the answer. This gives students a structured approach to visualization.

Also, encourage students to "read with their eyes closed" and imagine the scene described in the problem.

Question: What if I don't understand the words in the problem? How can I still solve it?

Answer: That's okay! Here's what you can do when words are tricky:

  • Ask a teacher or grown-up to read the problem aloud
  • Look for the numbers - they're the most important part!
  • Draw a picture of what you think is happening
  • Look for action words like "more" or "total" that tell you to add

Always remember that word problems are just stories about numbers! If you see two numbers and need to find the total, you probably need to add them together.

Don't worry about every word - focus on finding the numbers and what's happening to them. The story part just helps make math more interesting!