In this worksheet, round numbers to the nearest ten to estimate the answer to multiplication problems.
Example
Question:
Estimate the answer by rounding the numbers to the nearest 10 before multiplying.
*Remember to round down if the ones are 1, 2, 3 or 4. If the ones are 5, 6, 7, 8 or 9 round up!
78 x 43 | ![]() |
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x |
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= |
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Answer:
78 x 43 | ![]() |
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x |
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= |
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Remember, to work out 80 x 40, we work out 8 x 4 x 10 x 10 = 32 x 100 = 3200.