Multiplying decimals by whole numbers

  • Level: Grade 5
  • Free
  • Printable
  • Answer key included

A gentle introduction to decimal multiplication: one factor is a whole number from 2 to 9, the other has one decimal place.

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Grade 5
Multiplying decimals by whole numbers

Multiply.

Name Date Score / 20
  1. 1.
    3.7×7 
  2. 2.
    40.1×4 
  3. 3.
    46.8×3 
  4. 4.
    52.3×5 
  5. 5.
    15.1×9 
  6. 6.
    17.0×2 
  7. 7.
    77.2×9 
  8. 8.
    54.3×9 
  9. 9.
    86.7×4 
  10. 10.
    93.3×3 
  11. 11.
    88.1×8 
  12. 12.
    54.6×7 
  13. 13.
    44.9×4 
  14. 14.
    47.4×7 
  15. 15.
    45.8×4 
  16. 16.
    53.6×6 
  17. 17.
    97.7×2 
  18. 18.
    96.1×5 
  19. 19.
    6.6×4 
  20. 20.
    6.5×3 
MathSheetLab · mathlabs.pages.devWorksheet #361281
Grade 5
Multiplying decimals by whole numbersAnswer key
  1. 1.
    3.7×725.9
  2. 2.
    40.1×4160.4
  3. 3.
    46.8×3140.4
  4. 4.
    52.3×5261.5
  5. 5.
    15.1×9135.9
  6. 6.
    17.0×234
  7. 7.
    77.2×9694.8
  8. 8.
    54.3×9488.7
  9. 9.
    86.7×4346.8
  10. 10.
    93.3×3279.9
  11. 11.
    88.1×8704.8
  12. 12.
    54.6×7382.2
  13. 13.
    44.9×4179.6
  14. 14.
    47.4×7331.8
  15. 15.
    45.8×4183.2
  16. 16.
    53.6×6321.6
  17. 17.
    97.7×2195.4
  18. 18.
    96.1×5480.5
  19. 19.
    6.6×426.4
  20. 20.
    6.5×319.5
MathSheetLab · mathlabs.pages.devWorksheet #361281

About this worksheet

Each sheet contains 15, 20 or 25 problems (your choice) and is generated at random. Press “New problems” as many times as you like; there is no limit and no account needed.

Worked example

55.6×6 
  1. Ignore the decimal points and multiply: 556 × 6 = 3336.
  2. Count the decimal places in the two numbers: 1 + 0 = 1.
  3. Place the decimal point 1 place from the right: 333.6.

Answer: 333.6

Teaching tips

  • Connect to repeated addition: 3 × 2.5 = 2.5 + 2.5 + 2.5.

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