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Decimal Multiplication Practice

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Decimal Multiplication Practice

Estimate first, then solve. Show your work and include units when needed.

Estimate and Reason

1.Round 5.7 and 3.3 to the nearest whole number, then use the rounded numbers to estimate 5.7 × 3.3.
2.How many decimal places should the product have in 2.8 × 4.35?
  • 1 decimal place
  • 2 decimal places
  • 3 decimal places
  • 4 decimal places
3.Which product is closest to 12?
  • 2.6 × 4.1
  • 3.3 × 3.5
  • 5.4 × 2.1
  • 7.2 × 1.5

Multiply and Show Your Work

4.Estimate 2.6 × 3.4 by rounding each factor to the nearest whole number. Then calculate the exact product.
5.Estimate 3.7 × 2.8 using nearest whole numbers, then solve for the exact product.
6.Round 1.8 and 4.6 to estimate 1.8 × 4.6. Then find the exact product.

Explain and Apply

7.Emily multiplied 3.2 × 1.5 and wrote 480. Describe the likely place-value error and give the correct product.
8.A rectangular patio is 4.2 yards long and 1.6 yards wide. Estimate its area by rounding to whole yards, then find its exact area.
9.In your own words, explain how the decimal places in the factors help you place the decimal point in a product.

2 printable pages

  • Decimal Multiplication Practice, page 1 of 2: Estimate and Reason, Multiply and Show Your Work

    Page 1

  • Decimal Multiplication Practice, page 2 of 2: Explain and Apply

    Page 2

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