Solved Exercises on Money Word Problems in Grade 2

Master money calculations: coin values, addition, subtraction, and real-world money applications through these 5 detailed exercises.

Solution: Exercises 1 to 3
1 Counting Pennies
Exercise 1
Tom has 7 pennies. How much money does he have?
Definition:

Penny: A penny is worth 1¢ (one cent)

Simple counting method:
  1. Count how many pennies you have
  2. Since each penny is worth 1¢, the total is the same as the count
  3. Write the answer in cents (¢)
Number of Pennies
7
Value per Penny
1¢
Total Value
7 × 1¢ = 7¢
Step 1: Count the pennies

Tom has 7 pennies

Step 2: Multiply by value of each penny

7 pennies × 1¢ each = 7¢

Step 3: Write the answer

Tom has 7¢

Visual: ⚪ ⚪ ⚪ ⚪ ⚪ ⚪ ⚪ = 7¢

7 × 1¢ = 7¢
Final answer:

Tom has 7¢

Applied rules:

• Value Recognition: Each penny is worth 1¢

• Multiplication: Number of coins × value per coin

• Simplicity: With pennies, the count equals the value

2 Adding Nickels
Exercise 2
Sarah has 3 nickels. How much money does she have?
Definition:

Nickel: A nickel is worth 5¢ (five cents)

Number of Nickels
3
Value per Nickel
5¢
Total Value
3 × 5¢ = 15¢
Step 1: Count the nickels

Sarah has 3 nickels

Step 2: Multiply by value of each nickel

3 nickels × 5¢ each = 15¢

Step 3: Write the answer

Sarah has 15¢

Visual: ⚪ ⚪ ⚪ = 3 nickels = 5¢ + 5¢ + 5¢ = 15¢

3 × 5¢ = 15¢
Final answer:

Sarah has 15¢

Applied rules:

• Value Recognition: Each nickel is worth 5¢

• Multiplication: Number of coins × value per coin

• Counting by Fives: 5, 10, 15, etc.

3 Adding Different Coins
Exercise 3
Mike has 2 dimes and 3 pennies. How much money does he have?
Definition:

Dime: A dime is worth 10¢ (ten cents)

Dimes Value
2 × 10¢ = 20¢
Pennies Value
3 × 1¢ = 3¢
Total Value
20¢ + 3¢ = 23¢
Step 1: Calculate value of dimes

Mike has 2 dimes: 2 × 10¢ = 20¢

Step 2: Calculate value of pennies

Mike has 3 pennies: 3 × 1¢ = 3¢

Step 3: Add the values together

20¢ + 3¢ = 23¢

Visual: dime dime + penny penny penny = 20¢ + 3¢ = 23¢

20¢ + 3¢ = 23¢
Final answer:

Mike has 23¢

Applied rules:

• Value Recognition: Dime = 10¢, Penny = 1¢

• Multiplication: Calculate each coin type separately

• Addition: Add all values together

Money Values and Methods
1 penny = 1¢, 1 nickel = 5¢, 1 dime = 10¢
Coin Values
Penny
1¢
Worth 1 cent
Nickel
5¢
Worth 5 cents
Dime
10¢
Worth 10 cents
penny
Penny = 1¢
nickel
Nickel = 5¢
dime
Dime = 10¢
Solution: Exercises 4 to 5
4 Buying with Pennies
Exercise 4
Lisa has 12¢. She wants to buy a candy that costs 8¢. How much money will she have left?
Definition:

Subtraction: Taking away one amount from another

Money Lisa Has
12¢
Cost of Candy
8¢
Money Left
12¢ - 8¢ = 4¢
Step 1: Identify the amounts

Lisa has 12¢ and candy costs 8¢

Step 2: Subtract the cost from the money

12¢ - 8¢ = 4¢

Step 3: Write the answer

Lisa will have 4¢ left

Visual: 12¢ - 8¢ = 4¢

12¢ - 8¢ = 4¢
Final answer:

Lisa will have 4¢ left

Applied rules:

• Subtraction: Amount - Cost = Remaining

• Same Units: Both amounts in cents

• Verification: 8¢ + 4¢ = 12¢ ✓

5 Adding More Money
Exercise 5
Ben has 15¢. His mom gives him 5¢ more. How much money does he have now?
Definition:

Addition: Combining two or more amounts

Ben's Original Money
15¢
Money Added
5¢
Total Money
15¢ + 5¢ = 20¢
Step 1: Identify the amounts

Ben has 15¢ and gets 5¢ more

Step 2: Add the amounts together

15¢ + 5¢ = 20¢

Step 3: Write the answer

Ben now has 20¢

Visual: 15¢ + 5¢ = 20¢

15¢ + 5¢ = 20¢
Final answer:

Ben now has 20¢

Applied rules:

• Addition: Original + Added = Total

• Same Units: Both amounts in cents

• Verification: 20¢ - 5¢ = 15¢ ✓

Money Problem-Solving Strategies
\(\text{Total} = \text{Amount}_1 + \text{Amount}_2\)
Adding Money
Key definitions:

Coin Values: Penny = 1¢, Nickel = 5¢, Dime = 10¢

Money Operations: Addition for combining amounts, subtraction for taking away

Real-world Applications: Shopping, saving, spending

Complete methodology:
  1. Read the problem: Understand what is being asked
  2. Find important numbers: Look for amounts and operations
  3. Choose the operation: Add or subtract
  4. Solve: Follow the mathematical process
  5. Check: Make sure your answer makes sense
Tip 1: Always count by the same type of coin first.
Tip 2: Draw circles or lines to represent coins if needed.
Tip 3: Remember that 5 pennies equal 1 nickel.
Tip 4: Always include the cent symbol (¢) in your answer.
Common errors: Forgetting to add the cent symbol, mixing up coin values, adding instead of subtracting.
Practice strategies: Use real coins to practice, count by 5s and 10s, solve daily life scenarios.
Money formulas to know:

• Counting coins: Number × Value = Total value

• Adding money: Amount₁ + Amount₂ = Total

• Subtracting money: Starting - Spent = Remaining

• Comparing amounts: Which is more? Which is less?

Questions & Answers

Question: I get confused when I have to add different types of coins. How can I make it easier?

Answer: Here's a helpful strategy for adding different types of coins:

  • Group by type: First count all pennies, then all nickels, then all dimes
  • Calculate each group: Find the total value for each type of coin
  • Add the groups: Add all the totals together

For example: 3 pennies + 2 nickels + 1 dime

• 3 pennies = 3¢

• 2 nickels = 10¢

• 1 dime = 10¢

• Total = 3¢ + 10¢ + 10¢ = 23¢

Question: My child struggles with subtraction problems involving money. What can I do to help?

Answer: Subtraction with money can be made easier with these approaches:

  • Use manipulatives: Physical coins to act out the problem
  • Draw pictures: Draw the starting amount and cross out what was spent
  • Count backwards: Start from the larger amount and count down
  • Think addition: Ask "What do I add to the smaller number to get the larger number?"

For example: 12¢ - 8¢ can be thought of as "What + 8¢ = 12¢?" The answer is 4¢.

Question: How do I help students remember the different coin values?

Answer: Here are effective memory aids for coin values:

  • Penny rhyme: "Penny, penny, easy spent, copper brown and worth one cent!"
  • Nickel rhyme: "Nickel, nickel, thick and fat, you're worth five cents, that's a fact!"
  • Dime rhyme: "Dime is small, but worth ten cents, that's the smallest coin, but it's not bent!"
  • Size association: Dime is smallest but worth most, penny is bigger but worth least

Practice with actual coins frequently to build muscle memory and visual recognition.

Comprehensive Summary: Money Word Problems for Grade 2
Key Concepts and Definitions:

Money Word Problems: Real-life situations involving coins that require addition or subtraction to solve.

Coin Values: Specific monetary amounts assigned to different coins (penny=1¢, nickel=5¢, dime=10¢).

Cent Symbol: The symbol ¢ used to show money amounts in cents.

Operations: Addition (+) for combining money, subtraction (-) for taking away money.

Core Rules and Principles:

• Same Units: Always work with the same units (all in cents).

• Value Recognition: Know that Penny = 1¢, Nickel = 5¢, Dime = 10¢.

• Operation Selection: Addition for getting more money, subtraction for spending money.

• Verification: Always check if your answer makes sense in the context.

Step-by-Step Problem-Solving Method:
  1. Read Carefully: Understand what the problem is asking
  2. Find Important Numbers: Identify the amounts mentioned
  3. Decide Operation: Choose addition or subtraction
  4. Solve: Perform the calculation
  5. Check Answer: Make sure it makes sense
Tip 1: Use real coins to practice and visualize the problems.
Tip 2: Draw circles to represent coins when solving problems.
Tip 3: Always include the cent symbol (¢) in your final answer.
Tip 4: Practice counting by 5s and 10s to work with nickels and dimes.
Common Pitfalls: Mixing up coin values, forgetting to include the cent symbol, choosing wrong operation.
Memorization Aids: Remember that dimes are worth 10¢, nickels are worth 5¢, and pennies are worth 1¢.
Key Takeaways for Students:

• Master coin values: Penny (1¢), Nickel (5¢), Dime (10¢)

• Use addition when getting more money

• Use subtraction when spending money

• Always include the cent symbol (¢) in your answer

• Practice with real coins to build confidence