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addition problems in reverse
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multiplication problems in reverse
Denominators
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Answers in lowest terms; improper fractions like 7/4, not mixed numbers.
values
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values
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Add and subtract up to 4 decimal places. Multiply and divide with factors to the hundredths; division is exact.
Values
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Denominators
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Type mixed numbers with a space: 2 1/3.
Denominators
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Only denominators made of 2s and 5s convert to an exact decimal (2, 4, 5, 8, 10, 16, 20, 25…); others repeat forever and are skipped.
Time
Timed: answers advance on their own; Enter skips. Practice: no clock, check each answer, show the worked solution.