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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 722 · 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. 1.284 × 8 =
  2. 2.501 × 9 =
  3. 3.773 × 9 =
  4. 4.943 × 5 =
  5. 5.465 × 3 =
  6. 6.316 × 8 =
  7. 7.872 × 4 =
  8. 8.888 × 3 =
  9. 9.808 × 8 =
  10. 10.121 × 9 =
  11. 11.958 × 9 =
  12. 12.943 × 3 =
  13. 13.547 × 9 =
  14. 14.953 × 9 =
  15. 15.144 × 4 =
  16. 16.948 × 8 =
  17. 17.201 × 5 =
  18. 18.195 × 9 =
  19. 19.189 × 9 =
  20. 20.988 × 8 =
  21. 21.216 × 3 =
  22. 22.314 × 4 =
  23. 23.763 × 9 =
  24. 24.393 × 4 =
  25. 25.831 × 7 =
  26. 26.266 × 9 =
  27. 27.929 × 3 =
  28. 28.165 × 5 =
  29. 29.371 × 7 =
  30. 30.118 × 7 =
  31. 31.237 × 3 =
  32. 32.363 × 5 =
  33. 33.248 × 3 =
  34. 34.898 × 6 =
  35. 35.599 × 8 =
  36. 36.355 × 3 =
  37. 37.573 × 9 =
  38. 38.346 × 7 =
  39. 39.773 × 5 =
  40. 40.619 × 5 =

Answer key

  1. 2272
  2. 4509
  3. 6957
  4. 4715
  5. 1395
  6. 2528
  7. 3488
  8. 2664
  9. 6464
  10. 1089
  11. 8622
  12. 2829
  13. 4923
  14. 8577
  15. 576
  16. 7584
  17. 1005
  18. 1755
  19. 1701
  20. 7904
  21. 648
  22. 1256
  23. 6867
  24. 1572
  25. 5817
  26. 2394
  27. 2787
  28. 825
  29. 2597
  30. 826
  31. 711
  32. 1815
  33. 744
  34. 5388
  35. 4792
  36. 1065
  37. 5157
  38. 2422
  39. 3865
  40. 3095

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