Skill: Subtract money amounts in cents

Explanation and Free Practice Resources

The learner understands that money amounts expressed in cents are whole-number quantities and finds the difference between amounts, including cases requiring regrouping across tens, such as 73¢ − 28¢. Place-value notation and a number line can represent the quantities and make the difference meaningful as the amount remaining or the distance between values; the scope is whole-cent amounts, typically through 100¢, not decimal dollars, fractional cents, or larger financial calculations.

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Detailed Explanation: Subtract money amounts in cents

Cents are whole numbers, so subtract them just like other two-digit numbers.

Example: Find $(73\text{¢} - 28\text{¢})$ .

Line up the numbers by place value:

\begin{array}{r} 73\\ -28\\ \hline \end{array}

Start with the ones place. You cannot take $8$ ones from $3$ ones, so regroup $1$ ten as $(10)$ ones.
- $(73)$ becomes $6$ tens and $(13)$ ones.
Subtract the ones:

13-8=5

Subtract the tens:

6-2=4

Put the digits together:

73-28=45

So,

\boxed{73\text{¢}-28\text{¢}=45\text{¢}}

The answer means that after taking away $(28)$ cents from $(73)$ cents, $(45)$ cents remain.

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Coin Math - Subtract - Coins Minus Amount (Pictures)

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