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Multiplying Decimals Worksheet

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Multiplying Decimals Worksheet worksheet preview
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Multiplying Decimals Worksheet

Estimate first when asked, then calculate carefully. Show your working and check that each answer is reasonable.

Estimate and calculate

1.Estimate 4.7 × 6 by rounding 4.7 to the nearest whole number. Then calculate the exact product.
2.Estimate 3.2 × 4.6 by rounding each factor to the nearest whole number. Then calculate the exact product.
3.Calculate 6.9 × 4.
4.Calculate 1.35 × 8.
5.Calculate 0.8 × 0.6.
6.Which is the closest estimate for 5.1 × 7.8?
  • 13
  • 30
  • 40
  • 70

Decimal multiplication in context

7.On a road trip, Ruben buys 3.2 kg of pears at $4.75 per kilogram. What is the cost of the pears?
8.A travel camera costs $720 before GST. At a GST rate of 15%, calculate the GST amount and the price including GST.
9.A rectangular picnic area is 38.4 m long and 26.5 m wide. Find its area in square metres.
10.A drinks recipe uses 1.24 litres of juice. Finn is making 2.5 times the recipe. How many litres of juice does he need?

Check your understanding

11.Why is rounding to estimate a product useful before you calculate it exactly?
12.True or false: 0.6 × 0.3 = 0.18.
TrueFalse
13.True or false: A product of two decimal numbers must always have more decimal places than either factor.
TrueFalse
14.True or false: Multiplying a positive number by a positive decimal less than 1 gives a product smaller than the original number.
TrueFalse
15.True or false: 4.35 × 10 = 43.5.
TrueFalse
16.Calculate 7.6 × 3.
17.Calculate 2.75 × 4.6.
18.Calculate 11.25 × 6.08.

3 printable pages

  • Decimal multiplication practice: estimating and calculating decimal products.

    Page 1

  • Real-world decimal multiplication, GST, area, and a recipe scaling problem.

    Page 2

  • True-or-false checks and independent decimal multiplication practice.

    Page 3

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