Multiplication practice

Multiplying decimals

Create multiplying decimals worksheets with tenths or hundredths, adjustable whole-number width, 12–25 vertical problems, exact products, and answer keys.

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Estimate first, multiply the digits as whole numbers, then use the total number of decimal places in the factors to place the decimal point.

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Learning objective

What this activity builds

Multiply decimal values using whole-number products and place-value reasoning to position the decimal point.

Worked example

What is 3.6 × 2.5?

9.00, or 9

Compute 36 × 25 = 900. The factors have two decimal places altogether, so the exact product is 9.00.

Teaching notes

Make the practice count

  • Use an estimate such as 4 × 2.5 = 10 to check decimal placement.
  • Keep trailing zeros during the place-value explanation, then simplify the written value if appropriate.

Choose a multiplying decimals worksheet

For a first sheet, choose 1 digit right of each decimal and 12 problems. Use 0 or 1 digit left of the decimal to keep the whole-number parts small, and leave the width set to Up to the selected width while learners practice multiplying tenths.

For more advanced practice, choose 2 digits right of each decimal and Exactly the selected width. Selecting 2 digits left then gives both factors two-digit whole-number parts, while every problem keeps vertical partial-product space and the answer key shows the exact product.

Do the digit settings apply to one factor or both factors?

They apply to both factors. Every problem uses the same selected number of digits right of the decimal for each factor, and the chosen whole-number width also governs both factors.

What is the difference between Up to and Exactly the selected width?

Up to can include shorter whole-number parts, including zero. Exactly requires the selected 1- or 2-digit whole-number width in both factors. With 0 digits left, both choices keep the factors below 1. Products retain the combined decimal scale: tenths produce two decimal places and hundredths produce four.

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Configured PDF · Decimal Multiplication · US Letter

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3 student pages
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Math SheetNameScore/ 25TeacherDateDecimal MultiplicationMultiply the whole-number coefficients, then place the decimal using both factors together.1.13.51× 34.88Whole-number work2.64.17× 78.15Whole-number work3.37.23× 6.55Whole-number work4.49.40× 85.63Whole-number work5.59.06× 33.10Whole-number work6.80.87× 21.01Whole-number work7.62.16× 32.78Whole-number work8.24.64× 25.55Whole-number work9.67.07× 83.93Whole-number work10.62.12× 45.31Whole-number work11.95.37× 74.18Whole-number work12.44.83× 88.08Whole-number workmath-sheet.comPage 1 / 3
Math SheetNameScore/ 25TeacherDateDecimal MultiplicationMultiply the whole-number coefficients, then place the decimal using both factors together.13.90.54× 76.02Whole-number work14.5.82× 70.36Whole-number work15.70.10× 79.34Whole-number work16.25.63× 61.60Whole-number work17.21.65× 49.19Whole-number work18.74.78× 31.52Whole-number work19.54.57× 25.39Whole-number work20.85.89× 56.43Whole-number work21.43.16× 54.85Whole-number work22.62.60× 27.05Whole-number work23.11.66× 54.34Whole-number work24.77.28× 65.77Whole-number workmath-sheet.comPage 2 / 3
Math SheetNameScore/ 25TeacherDateDecimal MultiplicationMultiply the whole-number coefficients, then place the decimal using both factors together.25.70.00× 27.01Whole-number workmath-sheet.comPage 3 / 3

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