Collection A: 1 dollar bill and 3 quarters
Collection B: 4 quarters and 2 dimes
Money comparison: Finding which amount is greater by calculating total value of coins and bills
- Separately calculate value of bills and coins
- Add up all values in each collection
- Compare the totals
1 dollar bill = $1.00
3 quarters = 3 × $0.25 = $0.75
Total A = $1.00 + $0.75 = $1.75
4 quarters = 4 × $0.25 = $1.00
2 dimes = 2 × $0.10 = $0.20
Total B = $1.00 + $0.20 = $1.20
$1.75 > $1.20, so Collection A has more money
Collection A has more money because $1.75 > $1.20
• Coin values: Quarter = $0.25, Dime = $0.10
• Bill values: Dollar bill = $1.00
• Counting: Multiply quantity by value of each coin/bill
Emma has 2 dollars, 1 quarter, 3 dimes, and 4 nickels.
Tom has 1 dollar, 3 quarters, 5 dimes, and 2 nickels.
Complex comparison: Calculating total value of multiple types of coins and bills
2 dollars = 2 × $1.00 = $2.00
1 quarter = 1 × $0.25 = $0.25
3 dimes = 3 × $0.10 = $0.30
4 nickels = 4 × $0.05 = $0.20
Total Emma = $2.00 + $0.25 + $0.30 + $0.20 = $2.75
1 dollar = 1 × $1.00 = $1.00
3 quarters = 3 × $0.25 = $0.75
5 dimes = 5 × $0.10 = $0.50
2 nickels = 2 × $0.05 = $0.10
Total Tom = $1.00 + $0.75 + $0.50 + $0.10 = $2.35
$2.75 > $2.35, so Emma has more money
Emma has more money because $2.75 > $2.35
• Organize by type: Group same coins/bills together
• Calculate separately: Find value of each type
• Add all values: Get the total amount
Collection X: 1 dollar and 1 quarter
Collection Y: 5 quarters
Collection Z: 4 quarters and 5 dimes
Equal amounts: Collections with the same total value
1 dollar = $1.00
1 quarter = $0.25
Total X = $1.00 + $0.25 = $1.25
5 quarters = 5 × $0.25 = $1.25
Total Y = $1.25
4 quarters = 4 × $0.25 = $1.00
5 dimes = 5 × $0.10 = $0.50
Total Z = $1.00 + $0.50 = $1.50
Collection X = Collection Y = $1.25
Collection Z = $1.50 (different)
Collections X and Y have the same amount of money because both equal $1.25
• Same value: Different coins can equal the same amount
• Equality: Use = symbol when amounts are equal
• Multiple comparisons: Compare all collections to find matches
Money: Currency used to buy goods and services
Bill: Paper money with face value
Coin: Metal money with specific value
- Group by type: Separate bills from coins
- Count each type: How many of each bill/coin?
- Calculate value: Multiply quantity by denomination
- Find total: Add all values together
- Compare: Use >, <, or = symbols
• $1.00 = 100¢
• 4 quarters = $1.00
• 10 dimes = $1.00
• 20 nickels = $1.00
• 100 pennies = $1.00
Enough money: Having equal or more money than the cost of an item
2 dollars = 2 × $1.00 = $2.00
2 quarters = 2 × $0.25 = $0.50
3 dimes = 3 × $0.10 = $0.30
Total Sarah = $2.00 + $0.50 + $0.30 = $2.80
10 quarters = 10 × $0.25 = $2.50
Total Mike = $2.50
Sarah: $2.80 > $2.50 (has enough)
Mike: $2.50 = $2.50 (has enough)
Both Sarah and Mike have enough money to buy the toy
• Enough money: Amount ≥ cost of item
• Comparison: Use greater than or equal symbols
• Decision: Those with sufficient funds can purchase
Money left: Original amount minus amount spent
3 dollars = 3 × $1.00 = $3.00
4 quarters = 4 × $0.25 = $1.00
Total Alex = $3.00 + $1.00 = $4.00
Amount spent = $1.50
Alex left = $4.00 - $1.50 = $2.50
2 dollars = 2 × $1.00 = $2.00
6 quarters = 6 × $0.25 = $1.50
Total Bella = $2.00 + $1.50 = $3.50
$3.50 > $2.50, so Bella has more money
Bella has more money left because $3.50 > $2.50
• Subtraction: Original amount minus spending gives remaining
• Multiple operations: Perform addition then subtraction
• Comparison: Compare final amounts
Money: Medium of exchange for goods and services
Value: The worth of coins, bills, or items
Comparison: Determining which amount is greater or lesser
- Organize money: Group bills and coins by type
- Count each type: How many of each bill/coin?
- Calculate value: Multiply quantity by denomination
- Find total: Add all values together
- Compare amounts: Use mathematical symbols
- Verify: Double-check calculations
• Organize money by type before counting
• Calculate bills first, then coins separately
• Use > (greater than), < (less than), = (equal to)
• To have enough money: amount ≥ cost of item
• Money left = original amount - amount spent
Penny: 1 cent ($0.01)
Nickel: 5 cents ($0.05)
Dime: 10 cents ($0.10)
Quarter: 25 cents ($0.25)
Dollar: $1.00
Analysis: The chart shows the value relationships between different US currency.
- Penny = 1 cent = $0.01
- Nickel = 5 cents = $0.05
- Dime = 10 cents = $0.10
- Quarter = 25 cents = $0.25
- Dollar = $1.00