Practice makes progress

Decimal Arithmetic

Build accuracy and confidence by practicing one decimal problem at a time. Enter your result, then press the "Return" key or click "Check answer." Keep practicing, try another operation, or increase the level when the problems feel too easy.

Ready for a challenge? Math Quest

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Operation

Level

4 3 Your Answer

How the levels work

Add

Level 1: One-digit numbers with one decimal place, such as 4.2 + 3.7; the answer is less than 100.
Level 2: Two-digit numbers with one decimal place, such as 24.5 + 13.2; the answer is less than 100.
Level 3: Two-digit numbers with two decimal places, such as 24.56 + 13.27; the answer is less than 100.

Subtract

Level 1: One-digit numbers with one decimal place, such as 7.8 − 5.3, with the first tenths digit greater than the second.
Level 2: Two-digit numbers with one decimal place, such as 24.5 − 13.2.
Level 3: Two-digit numbers with two decimal places, such as 24.56 − 13.27.

Multiply

Level 1: A number from 0.1 to 0.9 multiplied by a natural number from 1 to 9.
Level 2: A number from 0.1 to 1.2 multiplied by a natural number from 3 to 9. At most one operand is a natural number.
Level 3: Two factors multiplied together, with at least one factor ranging from 0.1 to 1.2 and the other factor either ranging from 0.1 to 1.2 or being a natural number from 6 to 12. The two displayed factors will not both be natural numbers.

Divide

Level 1: A one-digit number with one decimal place (from 0.1 to 9.9) divided by a natural number, with a terminating decimal answer.
Level 2: A one-digit number with one decimal place divided by either a positive decimal less than 1 or a natural number, with a terminating decimal answer that is either a whole number or 0.y. At most one operand is a natural number.
Level 3: A number from 0.1 to 10.8 divided by either a positive decimal less than 1 or a natural number, with at least one value written as a decimal. Level 3 emphasizes decimal divisors and whole-number answers from 6 to 12 while retaining some terminating decimal answers from 0.1 to 1.2.

Number format

Values may be written as a natural number or as a decimal with one or two digits after the decimal point, depending on the level.
Division problems are generated so the answer is exact and does not repeat.
In every division problem, the numerator and denominator are different values.