Question

3) estimate the sum or difference

4,521 - 1325+786​

Answer 1

Answer:

3982

Step-by-step explanation:

4521+786=5307

5307-1325=3982

Answer 2

Step-by-step explanation:

The first step in estimating a sum or a difference is to round the numbers, by changing them to the nearest power of ten, hundred, thousand, etc. Round the numbers first, then use mental math to estimate an answer. When rounding, follow these rounding rules: If the number being rounded is less than 5, round down

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