Question

estimation sums of subtraction​

Answer 1

Answer:

Round and Estimate Subtraction Problems

Round the numbers that numbers that will be subtracted to the nearest ten: if the number ends in 0, 1, 2, 3 or 4, we round down. If the number ends in 5, 6, 7, 8 or 9, we round up.

Subtract the rounded numbers.

Even out the amount that was rounded.

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Answer 2

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