Solved Exercises on Counting Money Curriculum in Grade 2

Master counting money: coins and bills, adding amounts, making change, and solving money problems through these 5 detailed exercises.

Solution: Exercises 1 to 3
1 Counting coins
Exercise 1
Count the total value of these coins:
$0.25
$0.25
$0.10
$0.05
$0.01
Definition:

Counting coins: Adding up the value of different coins to find the total amount of money.

Coin counting method:
  1. Identify each coin and its value
  2. Group same coins together
  3. Add the values of all coins
  4. Express the total in dollars and cents
Quarters
2 × $0.25 = $0.50
Dimes
1 × $0.10 = $0.10
Nickels
1 × $0.05 = $0.05
Pennies
1 × $0.01 = $0.01
Step 1: Count quarters

2 quarters = 2 × $0.25 = $0.50

Step 2: Count dimes

1 dime = 1 × $0.10 = $0.10

Step 3: Count nickels

1 nickel = 1 × $0.05 = $0.05

Step 4: Count pennies

1 penny = 1 × $0.01 = $0.01

Step 5: Add all values

$0.50 + $0.10 + $0.05 + $0.01 = $0.66

Total = $0.66
Final answer:

The total value of the coins is 66 cents or $0.66

Applied rules:

• Coin values: Quarter = $0.25, Dime = $0.10, Nickel = $0.05, Penny = $0.01

• Addition rule: Add all coin values together

• Place value: Express final answer in dollars and cents

2 Adding bills and coins
Exercise 2
Sarah has 1 dollar bill, 2 quarters, 1 dime, and 3 pennies. How much money does she have altogether?
Definition:

Adding bills and coins: Combining paper money and coins to find the total value.

Dollar Bill
$1.00
Quarters
$0.50
Dime
$0.10
Pennies
$0.03
Total
$1.63
Step 1: Count dollar bill

1 dollar bill = $1.00

Step 2: Count quarters

2 quarters = 2 × $0.25 = $0.50

Step 3: Count dime

1 dime = 1 × $0.10 = $0.10

Step 4: Count pennies

3 pennies = 3 × $0.01 = $0.03

Step 5: Add all amounts

$1.00 + $0.50 + $0.10 + $0.03 = $1.63

Sarah has $1.63
Final answer:

Sarah has $1.63 altogether

Applied rules:

• Bills first: Count paper money separately

• Coin values: Remember each coin's value

• Decimal notation: Express in dollars and cents format

3 Making purchases
Exercise 3
Emma has 2 dollars and wants to buy a toy that costs $1.75. How much money will she have left after buying the toy?
Definition:

Purchase calculation: Subtracting the cost of an item from the money available to find the remaining amount.

Money Available
$2.00
Cost of Toy
$1.75
Money Left
$0.25
Step 1: Identify money available

Emma has $2.00

Step 2: Identify cost of item

The toy costs $1.75

Step 3: Subtract to find remaining

Money left = Money available - Cost of item

Money left = $2.00 - $1.75 = $0.25

Step 4: Verify the answer

Cost + Remaining = $1.75 + $0.25 = $2.00 ✓

Emma has $0.25 left
Final answer:

Emma will have $0.25 left after buying the toy

Applied rules:

• Subtraction rule: Money left = Money available - Item cost

• Verification rule: Check that cost + remaining equals original amount

• Money management: Always ensure sufficient funds

Money Rules and Values
$1 = 100¢
Money Conversion
Quarter
$0.25 = 25¢
Worth 25 cents
Dime
$0.10 = 10¢
Worth 10 cents
Nickel
$0.05 = 5¢
Worth 5 cents
Penny
$0.01 = 1¢
Worth 1 cent
Money Units: Dollars ($), Cents (¢), $1 = 100¢
Operations: Addition for totaling, Subtraction for making change
Tip 1: Group same coins together to make counting easier.
Tip 2: Count larger denominations first (quarters, then dimes, etc.).
Tip 3: Remember that 4 quarters make $1.00.
Solution: Exercises 4 to 5
4 Making change
Exercise 4
Tom buys a book that costs $3.45. He pays with a $5.00 bill. How much change should he receive?
Definition:

Making change: Calculating the difference between the amount paid and the cost of the item.

Amount Paid
$5.00
Cost of Book
$3.45
Change Due
$1.55
Step 1: Identify amount paid

Tom pays with $5.00

Step 2: Identify cost of item

The book costs $3.45

Step 3: Calculate change

Change = Amount paid - Cost of item

Change = $5.00 - $3.45 = $1.55

Step 4: Verify the answer

Cost + Change = $3.45 + $1.55 = $5.00 ✓

Tom should receive $1.55 in change
Final answer:

Tom should receive $1.55 in change

Applied rules:

• Change formula: Change = Amount paid - Cost of item

• Subtraction rule: Ensure correct decimal alignment

• Verification: Add cost and change to verify payment

5 Multi-step money problem
Exercise 5
Maya earned $2.50 for doing chores. Her mom gave her 3 quarters for helping with dinner. Then Maya spent $1.75 on candy. How much money does Maya have now?
Definition:

Multi-step money problems: Problems requiring multiple operations (additions and subtractions) to find the final amount.

Initial Earnings
$2.50
Gift Money
$0.75
Total Before Spending
$3.25
After Spending
$1.50
Step 1: Calculate initial earnings

Maya earned $2.50

Step 2: Calculate gift money

3 quarters = 3 × $0.25 = $0.75

Step 3: Add earnings and gifts

Total money = $2.50 + $0.75 = $3.25

Step 4: Subtract spending

Money left = $3.25 - $1.75 = $1.50

Step 5: Verify the sequence

$2.50 + $0.75 - $1.75 = $1.50 ✓

Maya has $1.50 now
Final answer:

Maya has $1.50 now

Applied rules:

• Sequential operations: Perform additions first, then subtractions

• Order matters: Follow the sequence of events

• Verification: Check that all transactions balance

Complete Summary: Counting Money Curriculum
Money = Bills + Coins
Money Calculation Formula
Key definitions:

Money: Currency used to buy goods and services

Coins: Small metal pieces worth specific amounts (quarters, dimes, nickels, pennies)

Bills: Paper currency worth larger amounts (dollars)

Cents: Smaller unit of money, 100 cents = 1 dollar

Money counting methodology:
  1. Identification: Recognize each coin and bill and their values
  2. Grouping: Organize same denomination items together
  3. Calculation: Multiply quantity by value for each denomination
  4. Summation: Add all values together
  5. Expression: Write final answer in dollars and cents format
Tip 1: Practice counting real or play money to build familiarity.
Tip 2: Count larger denominations first to make addition easier.
Tip 3: Always check that your total makes sense in context.
Tip 4: Draw pictures or use physical objects to visualize problems.
Common errors: Mixing up coin values, misaligning decimals, forgetting to convert units.
Key relationships: $1 = 100¢, 4 quarters = $1, 10 dimes = $1.
Essential rules to remember:

• Coin values: Quarter = $0.25, Dime = $0.10, Nickel = $0.05, Penny = $0.01

• Decimal alignment: Always align dollars and cents when adding/subtracting

• Change calculation: Change = Amount given - Cost of item

• Verification: Check that your answer is reasonable

• Money management: Ensure sufficient funds before purchasing

Examples progression:

Simple: Count identical coins (3 quarters = $0.75)

Intermediate: Mixed coins ($0.25 + $0.10 + $0.05 = $0.40)

Advanced: Multi-step problems with earning and spending

Verification methods:

Add back: If you subtracted, add back to check original amount

Estimate: Make sure answer makes sense in real-world context

Alternative method: Try counting in a different order to confirm

Memorization tip: "Quarter-Dime-Nickel-Penny" (25-10-5-1) - remember Q-D-N-P!

Questions & Answers

Question: Sometimes I get confused about which coin is which. How can I remember the values?

Answer: Great question! Here are some helpful ways to remember:

  • Size method: Quarters are the largest, then dimes, then nickels (which are bigger than pennies)
  • Color method: Pennies are copper/brown, others are silver
  • Value pattern: Quarter (25¢), Dime (10¢), Nickel (5¢), Penny (1¢)
  • Memory phrase: "Quarter, Dime, Nickel, Penny" = "25, 10, 5, 1"

You can also practice by handling real coins - the texture and weight help with identification. Also remember that 4 quarters make $1.00, which is a useful benchmark!

Practice with your family by counting spare change - it's both fun and educational!

Question: Why do we need to learn about money? When will I use this in real life?

Answer: Money skills are essential for everyday life! Here are some examples:

  • Shopping: Counting money to buy items at stores
  • Allowance: Managing your own money responsibly
  • Gifts: Buying presents for friends and family
  • Saving: Setting aside money for future goals
  • Understanding prices: Comparing costs of different items
  • Receiving change: Making sure you get the right amount back

Learning to count money now builds important financial literacy skills that will serve you throughout your life. It helps you make smart decisions about spending, saving, and budgeting!

Plus, understanding money helps you appreciate the value of work and saving!

Question: What if I want to buy something that costs $1.50 but I only have coins? How do I know if I have enough?

Answer: You can count your coins to see if they add up to $1.50 (or 150 cents). Here are some ways to make $1.50 with coins:

  • 6 quarters (6 × $0.25 = $1.50)
  • 15 dimes (15 × $0.10 = $1.50)
  • 30 nickels (30 × $0.05 = $1.50)
  • 150 pennies (150 × $0.01 = $1.50)
  • Or a combination: 4 quarters + 5 dimes = $1.00 + $0.50 = $1.50

To check if you have enough: count your coins and add their values. If the total is $1.50 or more, you have enough! If less, you need more money.

A helpful tip: Count quarters first since they're worth the most, then dimes, nickels, and pennies!