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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 724 · 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. 1.289 × 4 =
  2. 2.229 × 5 =
  3. 3.982 × 3 =
  4. 4.727 × 7 =
  5. 5.961 × 8 =
  6. 6.929 × 4 =
  7. 7.584 × 9 =
  8. 8.492 × 3 =
  9. 9.686 × 9 =
  10. 10.291 × 8 =
  11. 11.231 × 4 =
  12. 12.965 × 4 =
  13. 13.281 × 5 =
  14. 14.906 × 8 =
  15. 15.426 × 4 =
  16. 16.387 × 3 =
  17. 17.874 × 9 =
  18. 18.119 × 8 =
  19. 19.308 × 7 =
  20. 20.287 × 4 =
  21. 21.155 × 6 =
  22. 22.553 × 4 =
  23. 23.297 × 7 =
  24. 24.398 × 4 =
  25. 25.436 × 3 =
  26. 26.979 × 8 =
  27. 27.277 × 5 =
  28. 28.687 × 6 =
  29. 29.193 × 7 =
  30. 30.328 × 6 =
  31. 31.978 × 8 =
  32. 32.413 × 9 =
  33. 33.127 × 6 =
  34. 34.882 × 8 =
  35. 35.369 × 4 =
  36. 36.547 × 9 =
  37. 37.692 × 8 =
  38. 38.477 × 6 =
  39. 39.181 × 6 =
  40. 40.931 × 3 =

Answer key

  1. 1156
  2. 1145
  3. 2946
  4. 5089
  5. 7688
  6. 3716
  7. 5256
  8. 1476
  9. 6174
  10. 2328
  11. 924
  12. 3860
  13. 1405
  14. 7248
  15. 1704
  16. 1161
  17. 7866
  18. 952
  19. 2156
  20. 1148
  21. 930
  22. 2212
  23. 2079
  24. 1592
  25. 1308
  26. 7832
  27. 1385
  28. 4122
  29. 1351
  30. 1968
  31. 7824
  32. 3717
  33. 762
  34. 7056
  35. 1476
  36. 4923
  37. 5536
  38. 2862
  39. 1086
  40. 2793

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