Measurement & Data
Counting Money
Solving word problems involving dollar bills and coins.
Adding Up Dollars and Cents
Counting money is another real-world use of the addition and place-value skills already built up. Coins and bills each have their own value, and finding a total means adding those values together, the same way place value combined hundreds, tens, and ones.
Definition — Coin and Bill Values
To find the total value of a group of coins or bills, add each one's value together, usually counting the largest values first to make the running total easier to keep track of.
Worked Example — Counting a Group of Coins
Worked Example — Solving a Money Word Problem
Tip
Common Mistakes
Counting every coin as if it were worth the same amount, such as counting a quarter as only 1 cent.
Know each coin's exact value before counting — a quarter is 25 cents, a dime is 10 cents, a nickel is 5 cents, and a penny is 1 cent — and add those specific values.
Counting coins in a random order, making it easy to lose track of the running total.
Sort the coins by value first and count from the largest to the smallest, so each addition step builds cleanly on the last.
Key Takeaways
- Each coin and bill has a fixed value that must be added, not just counted as one item.
- Counting from the largest value down to the smallest keeps a running total organized.
- Money word problems use the same addition and subtraction thinking as any other word problem.
Summary
Counting money applies addition to a real, everyday system of values. The final unit returns to geometry, extending shape recognition and equal partitioning from Grade 1 into new territory.
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