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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 379 · 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. 1.115 × 6 =
  2. 2.252 × 3 =
  3. 3.355 × 9 =
  4. 4.396 × 5 =
  5. 5.666 × 9 =
  6. 6.376 × 9 =
  7. 7.815 × 6 =
  8. 8.821 × 5 =
  9. 9.687 × 7 =
  10. 10.931 × 7 =
  11. 11.941 × 7 =
  12. 12.308 × 6 =
  13. 13.298 × 3 =
  14. 14.592 × 3 =
  15. 15.546 × 3 =
  16. 16.894 × 3 =
  17. 17.453 × 6 =
  18. 18.521 × 7 =
  19. 19.151 × 9 =
  20. 20.588 × 7 =
  21. 21.599 × 7 =
  22. 22.494 × 9 =
  23. 23.263 × 6 =
  24. 24.719 × 5 =
  25. 25.211 × 8 =
  26. 26.507 × 4 =
  27. 27.549 × 4 =
  28. 28.208 × 7 =
  29. 29.228 × 4 =
  30. 30.967 × 5 =
  31. 31.672 × 4 =
  32. 32.431 × 5 =
  33. 33.923 × 7 =
  34. 34.525 × 4 =
  35. 35.286 × 4 =
  36. 36.266 × 4 =
  37. 37.971 × 9 =
  38. 38.173 × 3 =
  39. 39.591 × 4 =
  40. 40.159 × 8 =

Answer key

  1. 690
  2. 756
  3. 3195
  4. 1980
  5. 5994
  6. 3384
  7. 4890
  8. 4105
  9. 4809
  10. 6517
  11. 6587
  12. 1848
  13. 894
  14. 1776
  15. 1638
  16. 2682
  17. 2718
  18. 3647
  19. 1359
  20. 4116
  21. 4193
  22. 4446
  23. 1578
  24. 3595
  25. 1688
  26. 2028
  27. 2196
  28. 1456
  29. 912
  30. 4835
  31. 2688
  32. 2155
  33. 6461
  34. 2100
  35. 1144
  36. 1064
  37. 8739
  38. 519
  39. 2364
  40. 1272

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