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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 404 · 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. 1.902 × 5 =
  2. 2.274 × 9 =
  3. 3.901 × 8 =
  4. 4.491 × 5 =
  5. 5.568 × 4 =
  6. 6.361 × 9 =
  7. 7.292 × 8 =
  8. 8.341 × 9 =
  9. 9.975 × 7 =
  10. 10.868 × 8 =
  11. 11.118 × 7 =
  12. 12.137 × 5 =
  13. 13.842 × 5 =
  14. 14.328 × 7 =
  15. 15.922 × 6 =
  16. 16.971 × 9 =
  17. 17.842 × 3 =
  18. 18.396 × 3 =
  19. 19.213 × 8 =
  20. 20.837 × 4 =
  21. 21.313 × 7 =
  22. 22.243 × 9 =
  23. 23.214 × 4 =
  24. 24.689 × 6 =
  25. 25.332 × 5 =
  26. 26.583 × 8 =
  27. 27.228 × 4 =
  28. 28.429 × 8 =
  29. 29.628 × 5 =
  30. 30.511 × 3 =
  31. 31.371 × 9 =
  32. 32.211 × 7 =
  33. 33.185 × 8 =
  34. 34.315 × 3 =
  35. 35.808 × 6 =
  36. 36.689 × 8 =
  37. 37.511 × 4 =
  38. 38.641 × 9 =
  39. 39.915 × 6 =
  40. 40.723 × 3 =

Answer key

  1. 4510
  2. 2466
  3. 7208
  4. 2455
  5. 2272
  6. 3249
  7. 2336
  8. 3069
  9. 6825
  10. 6944
  11. 826
  12. 685
  13. 4210
  14. 2296
  15. 5532
  16. 8739
  17. 2526
  18. 1188
  19. 1704
  20. 3348
  21. 2191
  22. 2187
  23. 856
  24. 4134
  25. 1660
  26. 4664
  27. 912
  28. 3432
  29. 3140
  30. 1533
  31. 3339
  32. 1477
  33. 1480
  34. 945
  35. 4848
  36. 5512
  37. 2044
  38. 5769
  39. 5490
  40. 2169

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