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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 770 · 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. 1.488 × 7 =
  2. 2.143 × 8 =
  3. 3.581 × 3 =
  4. 4.246 × 4 =
  5. 5.667 × 6 =
  6. 6.929 × 5 =
  7. 7.132 × 5 =
  8. 8.602 × 3 =
  9. 9.282 × 5 =
  10. 10.653 × 9 =
  11. 11.947 × 9 =
  12. 12.403 × 9 =
  13. 13.158 × 5 =
  14. 14.436 × 5 =
  15. 15.407 × 3 =
  16. 16.457 × 7 =
  17. 17.723 × 9 =
  18. 18.258 × 4 =
  19. 19.962 × 6 =
  20. 20.965 × 5 =
  21. 21.334 × 3 =
  22. 22.671 × 9 =
  23. 23.658 × 4 =
  24. 24.246 × 7 =
  25. 25.848 × 4 =
  26. 26.353 × 7 =
  27. 27.137 × 4 =
  28. 28.966 × 7 =
  29. 29.601 × 7 =
  30. 30.773 × 5 =
  31. 31.979 × 3 =
  32. 32.259 × 8 =
  33. 33.307 × 7 =
  34. 34.553 × 7 =
  35. 35.173 × 8 =
  36. 36.161 × 3 =
  37. 37.163 × 3 =
  38. 38.401 × 4 =
  39. 39.243 × 6 =
  40. 40.505 × 7 =

Answer key

  1. 3416
  2. 1144
  3. 1743
  4. 984
  5. 4002
  6. 4645
  7. 660
  8. 1806
  9. 1410
  10. 5877
  11. 8523
  12. 3627
  13. 790
  14. 2180
  15. 1221
  16. 3199
  17. 6507
  18. 1032
  19. 5772
  20. 4825
  21. 1002
  22. 6039
  23. 2632
  24. 1722
  25. 3392
  26. 2471
  27. 548
  28. 6762
  29. 4207
  30. 3865
  31. 2937
  32. 2072
  33. 2149
  34. 3871
  35. 1384
  36. 483
  37. 489
  38. 1604
  39. 1458
  40. 3535

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