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Daily Math Minute

Measurement & Data

Counting Money

Solving word problems involving dollar bills and coins.

Foundational15 min lesson3 min readUpdated August 12, 2026Author not yet attributed

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

A penny is worth 1 cent, a nickel is worth 5 cents, a dime is worth 10 cents, and a quarter is worth 25 cents. A dollar bill is worth 100 cents, also written as $1.00.

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

A pocket has 2 quarters, 1 dime, and 3 pennies. Counting from the largest value: 25 + 25 = 50 cents, 50 + 10 = 60 cents, 60 + 1 + 1 + 1 = 63 cents. The total is 63 cents.

Worked Example — Solving a Money Word Problem

A toy costs 45 cents. A student has 2 quarters. How much change should the student get back? Two quarters is worth 25 + 25 = 50 cents. Subtract the cost of the toy: 50 − 45 = 5. The student should get back 5 cents.

Tip

Count coins from the largest value down to the smallest — starting with quarters, then dimes, then nickels, then pennies — to keep the running total organized.

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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