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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 290 · 40 questions
TalentJR

How to do it in your head (Biggest part first): Split the 3-digit number into hundreds, tens and ones. Multiply the hundreds and keep that number in your head. Multiply the tens and add, then multiply the ones and add.

NameDateTime takenScore ___ / 40
  1. 1.488 × 5 =
  2. 2.191 × 4 =
  3. 3.179 × 9 =
  4. 4.446 × 6 =
  5. 5.198 × 4 =
  6. 6.151 × 4 =
  7. 7.487 × 6 =
  8. 8.931 × 7 =
  9. 9.946 × 5 =
  10. 10.492 × 5 =
  11. 11.675 × 6 =
  12. 12.685 × 9 =
  13. 13.272 × 3 =
  14. 14.689 × 3 =
  15. 15.485 × 6 =
  16. 16.175 × 3 =
  17. 17.565 × 3 =
  18. 18.351 × 9 =
  19. 19.781 × 4 =
  20. 20.357 × 8 =
  21. 21.831 × 7 =
  22. 22.515 × 7 =
  23. 23.744 × 7 =
  24. 24.791 × 3 =
  25. 25.772 × 7 =
  26. 26.449 × 7 =
  27. 27.787 × 6 =
  28. 28.845 × 8 =
  29. 29.149 × 7 =
  30. 30.547 × 6 =
  31. 31.964 × 7 =
  32. 32.501 × 8 =
  33. 33.415 × 8 =
  34. 34.578 × 3 =
  35. 35.907 × 3 =
  36. 36.901 × 3 =
  37. 37.606 × 4 =
  38. 38.294 × 6 =
  39. 39.747 × 6 =
  40. 40.487 × 4 =

Answer key

  1. 2440
  2. 764
  3. 1611
  4. 2676
  5. 792
  6. 604
  7. 2922
  8. 6517
  9. 4730
  10. 2460
  11. 4050
  12. 6165
  13. 816
  14. 2067
  15. 2910
  16. 525
  17. 1695
  18. 3159
  19. 3124
  20. 2856
  21. 5817
  22. 3605
  23. 5208
  24. 2373
  25. 5404
  26. 3143
  27. 4722
  28. 6760
  29. 1043
  30. 3282
  31. 6748
  32. 4008
  33. 3320
  34. 1734
  35. 2721
  36. 2703
  37. 2424
  38. 1764
  39. 4482
  40. 1948

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