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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 573 · 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. 1.244 × 5 =
  2. 2.835 × 8 =
  3. 3.313 × 8 =
  4. 4.759 × 4 =
  5. 5.113 × 3 =
  6. 6.721 × 4 =
  7. 7.591 × 5 =
  8. 8.804 × 6 =
  9. 9.652 × 9 =
  10. 10.625 × 9 =
  11. 11.213 × 9 =
  12. 12.481 × 3 =
  13. 13.736 × 9 =
  14. 14.951 × 3 =
  15. 15.917 × 3 =
  16. 16.197 × 7 =
  17. 17.147 × 8 =
  18. 18.475 × 5 =
  19. 19.483 × 6 =
  20. 20.984 × 3 =
  21. 21.589 × 3 =
  22. 22.687 × 3 =
  23. 23.881 × 8 =
  24. 24.245 × 5 =
  25. 25.756 × 5 =
  26. 26.542 × 8 =
  27. 27.987 × 7 =
  28. 28.334 × 8 =
  29. 29.192 × 9 =
  30. 30.459 × 9 =
  31. 31.896 × 7 =
  32. 32.261 × 3 =
  33. 33.114 × 4 =
  34. 34.278 × 3 =
  35. 35.808 × 6 =
  36. 36.733 × 4 =
  37. 37.577 × 5 =
  38. 38.819 × 5 =
  39. 39.848 × 9 =
  40. 40.358 × 4 =

Answer key

  1. 1220
  2. 6680
  3. 2504
  4. 3036
  5. 339
  6. 2884
  7. 2955
  8. 4824
  9. 5868
  10. 5625
  11. 1917
  12. 1443
  13. 6624
  14. 2853
  15. 2751
  16. 1379
  17. 1176
  18. 2375
  19. 2898
  20. 2952
  21. 1767
  22. 2061
  23. 7048
  24. 1225
  25. 3780
  26. 4336
  27. 6909
  28. 2672
  29. 1728
  30. 4131
  31. 6272
  32. 783
  33. 456
  34. 834
  35. 4848
  36. 2932
  37. 2885
  38. 4095
  39. 7632
  40. 1432

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