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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 512 · 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. 1.171 × 9 =
  2. 2.961 × 5 =
  3. 3.171 × 6 =
  4. 4.266 × 7 =
  5. 5.792 × 5 =
  6. 6.317 × 3 =
  7. 7.221 × 5 =
  8. 8.373 × 8 =
  9. 9.786 × 8 =
  10. 10.374 × 3 =
  11. 11.636 × 9 =
  12. 12.471 × 6 =
  13. 13.478 × 9 =
  14. 14.306 × 3 =
  15. 15.707 × 8 =
  16. 16.406 × 4 =
  17. 17.329 × 9 =
  18. 18.294 × 9 =
  19. 19.337 × 8 =
  20. 20.202 × 3 =
  21. 21.473 × 4 =
  22. 22.421 × 3 =
  23. 23.685 × 9 =
  24. 24.339 × 6 =
  25. 25.784 × 4 =
  26. 26.852 × 8 =
  27. 27.295 × 6 =
  28. 28.245 × 3 =
  29. 29.759 × 4 =
  30. 30.783 × 4 =
  31. 31.724 × 4 =
  32. 32.581 × 6 =
  33. 33.842 × 3 =
  34. 34.322 × 6 =
  35. 35.229 × 3 =
  36. 36.867 × 8 =
  37. 37.669 × 7 =
  38. 38.224 × 6 =
  39. 39.854 × 5 =
  40. 40.357 × 8 =

Answer key

  1. 1539
  2. 4805
  3. 1026
  4. 1862
  5. 3960
  6. 951
  7. 1105
  8. 2984
  9. 6288
  10. 1122
  11. 5724
  12. 2826
  13. 4302
  14. 918
  15. 5656
  16. 1624
  17. 2961
  18. 2646
  19. 2696
  20. 606
  21. 1892
  22. 1263
  23. 6165
  24. 2034
  25. 3136
  26. 6816
  27. 1770
  28. 735
  29. 3036
  30. 3132
  31. 2896
  32. 3486
  33. 2526
  34. 1932
  35. 687
  36. 6936
  37. 4683
  38. 1344
  39. 4270
  40. 2856

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