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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 33 · 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. 1.186 × 4 =
  2. 2.926 × 5 =
  3. 3.624 × 7 =
  4. 4.502 × 4 =
  5. 5.531 × 9 =
  6. 6.887 × 3 =
  7. 7.142 × 3 =
  8. 8.367 × 5 =
  9. 9.711 × 8 =
  10. 10.196 × 3 =
  11. 11.246 × 3 =
  12. 12.913 × 6 =
  13. 13.649 × 4 =
  14. 14.423 × 8 =
  15. 15.415 × 7 =
  16. 16.886 × 4 =
  17. 17.809 × 8 =
  18. 18.572 × 4 =
  19. 19.878 × 8 =
  20. 20.305 × 4 =
  21. 21.712 × 3 =
  22. 22.661 × 6 =
  23. 23.841 × 3 =
  24. 24.776 × 9 =
  25. 25.151 × 8 =
  26. 26.178 × 7 =
  27. 27.182 × 6 =
  28. 28.812 × 9 =
  29. 29.464 × 4 =
  30. 30.351 × 6 =
  31. 31.943 × 8 =
  32. 32.431 × 4 =
  33. 33.576 × 6 =
  34. 34.658 × 5 =
  35. 35.622 × 4 =
  36. 36.956 × 7 =
  37. 37.165 × 6 =
  38. 38.116 × 5 =
  39. 39.876 × 4 =
  40. 40.257 × 4 =

Answer key

  1. 744
  2. 4630
  3. 4368
  4. 2008
  5. 4779
  6. 2661
  7. 426
  8. 1835
  9. 5688
  10. 588
  11. 738
  12. 5478
  13. 2596
  14. 3384
  15. 2905
  16. 3544
  17. 6472
  18. 2288
  19. 7024
  20. 1220
  21. 2136
  22. 3966
  23. 2523
  24. 6984
  25. 1208
  26. 1246
  27. 1092
  28. 7308
  29. 1856
  30. 2106
  31. 7544
  32. 1724
  33. 3456
  34. 3290
  35. 2488
  36. 6692
  37. 990
  38. 580
  39. 3504
  40. 1028

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