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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 374 · 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. 1.371 × 4 =
  2. 2.186 × 6 =
  3. 3.367 × 9 =
  4. 4.237 × 7 =
  5. 5.974 × 8 =
  6. 6.177 × 4 =
  7. 7.429 × 7 =
  8. 8.232 × 8 =
  9. 9.525 × 9 =
  10. 10.266 × 3 =
  11. 11.322 × 3 =
  12. 12.815 × 3 =
  13. 13.358 × 7 =
  14. 14.297 × 9 =
  15. 15.158 × 3 =
  16. 16.319 × 3 =
  17. 17.551 × 4 =
  18. 18.752 × 6 =
  19. 19.763 × 5 =
  20. 20.241 × 4 =
  21. 21.475 × 7 =
  22. 22.868 × 5 =
  23. 23.683 × 8 =
  24. 24.494 × 5 =
  25. 25.443 × 6 =
  26. 26.427 × 3 =
  27. 27.411 × 8 =
  28. 28.242 × 3 =
  29. 29.615 × 5 =
  30. 30.169 × 7 =
  31. 31.316 × 5 =
  32. 32.177 × 7 =
  33. 33.163 × 7 =
  34. 34.114 × 4 =
  35. 35.851 × 8 =
  36. 36.213 × 9 =
  37. 37.551 × 3 =
  38. 38.708 × 5 =
  39. 39.346 × 4 =
  40. 40.445 × 7 =

Answer key

  1. 1484
  2. 1116
  3. 3303
  4. 1659
  5. 7792
  6. 708
  7. 3003
  8. 1856
  9. 4725
  10. 798
  11. 966
  12. 2445
  13. 2506
  14. 2673
  15. 474
  16. 957
  17. 2204
  18. 4512
  19. 3815
  20. 964
  21. 3325
  22. 4340
  23. 5464
  24. 2470
  25. 2658
  26. 1281
  27. 3288
  28. 726
  29. 3075
  30. 1183
  31. 1580
  32. 1239
  33. 1141
  34. 456
  35. 6808
  36. 1917
  37. 1653
  38. 3540
  39. 1384
  40. 3115

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