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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 155 · 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. 1.565 × 3 =
  2. 2.338 × 6 =
  3. 3.206 × 8 =
  4. 4.221 × 8 =
  5. 5.164 × 9 =
  6. 6.185 × 5 =
  7. 7.791 × 6 =
  8. 8.704 × 9 =
  9. 9.842 × 6 =
  10. 10.733 × 7 =
  11. 11.678 × 6 =
  12. 12.381 × 7 =
  13. 13.432 × 4 =
  14. 14.686 × 7 =
  15. 15.731 × 8 =
  16. 16.801 × 7 =
  17. 17.456 × 4 =
  18. 18.437 × 8 =
  19. 19.332 × 5 =
  20. 20.654 × 3 =
  21. 21.499 × 8 =
  22. 22.551 × 5 =
  23. 23.494 × 9 =
  24. 24.397 × 3 =
  25. 25.977 × 5 =
  26. 26.581 × 8 =
  27. 27.743 × 3 =
  28. 28.799 × 7 =
  29. 29.172 × 7 =
  30. 30.952 × 5 =
  31. 31.266 × 5 =
  32. 32.547 × 5 =
  33. 33.112 × 3 =
  34. 34.731 × 9 =
  35. 35.893 × 4 =
  36. 36.667 × 4 =
  37. 37.865 × 4 =
  38. 38.905 × 7 =
  39. 39.851 × 4 =
  40. 40.238 × 5 =

Answer key

  1. 1695
  2. 2028
  3. 1648
  4. 1768
  5. 1476
  6. 925
  7. 4746
  8. 6336
  9. 5052
  10. 5131
  11. 4068
  12. 2667
  13. 1728
  14. 4802
  15. 5848
  16. 5607
  17. 1824
  18. 3496
  19. 1660
  20. 1962
  21. 3992
  22. 2755
  23. 4446
  24. 1191
  25. 4885
  26. 4648
  27. 2229
  28. 5593
  29. 1204
  30. 4760
  31. 1330
  32. 2735
  33. 336
  34. 6579
  35. 3572
  36. 2668
  37. 3460
  38. 6335
  39. 3404
  40. 1190

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