Question

estimate 490.21 nearest tenth​

Answer 1

Answer:

For estimating to the nearest 10, we look at the digit in the ones place. If it is 0, 1, 2, 3 or 4 we replace it by zero. If the digit in the ones place is 5, 6, 7, 8, or 9 we replace it by zero. If the digit in the ones place is 5, 6, 7, 8 or 9 we replace it by zero and increase the digit in the tens place by 1.

Step-by-step explanation:

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