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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 349 · 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. 1.648 × 9 =
  2. 2.794 × 3 =
  3. 3.585 × 9 =
  4. 4.518 × 7 =
  5. 5.545 × 6 =
  6. 6.872 × 3 =
  7. 7.216 × 3 =
  8. 8.368 × 6 =
  9. 9.325 × 6 =
  10. 10.426 × 9 =
  11. 11.757 × 4 =
  12. 12.605 × 5 =
  13. 13.447 × 4 =
  14. 14.212 × 3 =
  15. 15.353 × 5 =
  16. 16.285 × 3 =
  17. 17.327 × 7 =
  18. 18.611 × 4 =
  19. 19.405 × 7 =
  20. 20.431 × 6 =
  21. 21.715 × 4 =
  22. 22.697 × 4 =
  23. 23.475 × 6 =
  24. 24.943 × 5 =
  25. 25.178 × 3 =
  26. 26.262 × 6 =
  27. 27.823 × 4 =
  28. 28.555 × 4 =
  29. 29.158 × 4 =
  30. 30.535 × 9 =
  31. 31.646 × 9 =
  32. 32.304 × 4 =
  33. 33.165 × 3 =
  34. 34.132 × 7 =
  35. 35.931 × 4 =
  36. 36.247 × 6 =
  37. 37.828 × 4 =
  38. 38.332 × 9 =
  39. 39.794 × 4 =
  40. 40.234 × 6 =

Answer key

  1. 5832
  2. 2382
  3. 5265
  4. 3626
  5. 3270
  6. 2616
  7. 648
  8. 2208
  9. 1950
  10. 3834
  11. 3028
  12. 3025
  13. 1788
  14. 636
  15. 1765
  16. 855
  17. 2289
  18. 2444
  19. 2835
  20. 2586
  21. 2860
  22. 2788
  23. 2850
  24. 4715
  25. 534
  26. 1572
  27. 3292
  28. 2220
  29. 632
  30. 4815
  31. 5814
  32. 1216
  33. 495
  34. 924
  35. 3724
  36. 1482
  37. 3312
  38. 2988
  39. 3176
  40. 1404

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