Collection A: 5 pennies
Collection B: 3 pennies
Money comparison: Finding which amount is greater by counting total value of coins
- Count the number of pennies in each collection
- Calculate the total value (each penny = 1 cent)
- Compare the totals
Collection A has 5 pennies
Total value = 5 × 1¢ = 5¢
Collection B has 3 pennies
Total value = 3 × 1¢ = 3¢
5¢ > 3¢, so Collection A has more money
Collection A has more money because 5¢ > 3¢
• Coin value: Penny = 1¢
• Counting: Multiply quantity by value of each coin
• Comparison: Compare amounts using >, <, or =
Sam has 2 nickels.
Lisa has 9 pennies.
Comparing different coins: Calculating total value of different types of coins
2 nickels = 2 × 5¢ = 10¢
9 pennies = 9 × 1¢ = 9¢
10¢ > 9¢, so Sam has more money
Sam has more money because 10¢ > 9¢
• Coin values: Nickel = 5¢, Penny = 1¢
• Multiplication: Quantity × Value = Total
• Comparison: Compare total amounts
Collection X: 1 dime
Collection Y: 2 nickels
Comparing different coin values: Understanding that different coins have different values
1 dime = 1 × 10¢ = 10¢
2 nickels = 2 × 5¢ = 10¢
10¢ = 10¢, so both collections have the same amount
Both collections have the same amount of money because 10¢ = 10¢
• Different coins: Same total value can come from different coins
• Equality: Use = symbol when amounts are equal
• Value calculation: Count coins by type and multiply by value
Money: Currency used to buy things
Coin: Small round piece of metal worth a specific amount
Value: How much money something is worth
- Count coins: Count how many of each type
- Calculate value: Multiply quantity by coin value
- Add totals: Find total for each group
- Compare: Use >, <, or = symbols
• 5 pennies = 1 nickel
• 2 nickels = 1 dime
• 10 pennies = 1 dime
• 4 quarters = 1 dollar
• 100 cents = 1 dollar
Having enough money: Having equal or more money than the cost of an item
2 dimes = 2 × 10¢ = 20¢
15 pennies = 15 × 1¢ = 15¢
Anna: 20¢ > 15¢ (has enough)
Ben: 15¢ = 15¢ (has enough)
Both Anna and Ben have enough money to buy the candy
• Enough money: Amount ≥ cost of item
• Comparison: Use greater than or equal symbols
• Decision: Those with sufficient funds can purchase
Mixed coin counting: Adding different types of coins together
3 nickels = 3 × 5¢ = 15¢
2 pennies = 2 × 1¢ = 2¢
Total: 15¢ + 2¢ = 17¢
1 dime = 1 × 10¢ = 10¢
5 pennies = 5 × 1¢ = 5¢
Total: 10¢ + 5¢ = 15¢
17¢ > 15¢, so Maya has more money
Maya has more money because 17¢ > 15¢
• Addition: Add different coin values together
• Multiplication: Count multiple coins of same type
• Comparison: Compare final amounts
Money: Something used to buy things
Value: How much something is worth
Comparison: Seeing which amount is bigger or smaller
- Look at coins: See what types of coins you have
- Count each type: How many of each kind?
- Find total value: Multiply and add to get total
- Compare amounts: Use >, <, or = symbols
- Check your work: Count again to make sure
• Count each type of coin separately
• Multiply quantity by coin value
• Add different coins together for total
• Use > (more than), < (less than), = (same as)
• To buy something: money ≥ cost
Penny: 1 cent (1¢)
Nickel: 5 cents (5¢)
Dime: 10 cents (10¢)
Analysis: The chart shows the value relationships between basic US coins for Year 1.
- Penny = 1 cent (1¢)
- Nickel = 5 cents (5¢)
- Dime = 10 cents (10¢)