Worksheet: Estimating Differences between Two-Digit Numbers: Rounding

In this worksheet, we will practice estimating the difference between two-digit numbers by rounding to the nearest ten.

Q1:

Hannah wants to estimate4217.

She decides to round the numbers to the nearest ten.

Pick the calculation she should do to estimate.

  • A 5 0 2 0
  • B 4 0 1 0
  • C 5 0 1 0
  • D 4 0 2 0

Estimate 4217.

Q2:

Look at how Anthony estimated the difference by rounding to the nearest ten.

4 3 3 1 is about 10.

Estimate the difference by rounding to the nearest ten.

5 7 2 1 is about .

Estimate the difference by rounding to the nearest ten.

5 3 2 8 is about .

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