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Worksheet: Estimating Products of 1-Digit Numbers by 2- or 3-Digit Numbers

Q1:

We can estimate to check our work.

Estimate 8 3 × 4 by rounding 83 to the nearest ten.

Find the product.

Check that your answer is reasonable using your estimate.

Q2:

Look at how Olivia estimated the product by rounding the three-digit number to the nearest hundred.

Use her method to estimate 7 9 2 × 5 .

Use her method to estimate 2 5 3 × 9 .

Q3:

We can estimate to check our work.

Estimate 2 6 9 × 6 by rounding 269 to the nearest hundred.

Find the product.

Check that your answer is reasonable using your estimate.