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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 6 · 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. 1.336 × 4 =
  2. 2.121 × 6 =
  3. 3.248 × 9 =
  4. 4.567 × 9 =
  5. 5.214 × 7 =
  6. 6.384 × 4 =
  7. 7.935 × 6 =
  8. 8.236 × 5 =
  9. 9.523 × 6 =
  10. 10.547 × 9 =
  11. 11.486 × 9 =
  12. 12.308 × 9 =
  13. 13.851 × 6 =
  14. 14.695 × 8 =
  15. 15.154 × 6 =
  16. 16.902 × 4 =
  17. 17.411 × 8 =
  18. 18.541 × 4 =
  19. 19.588 × 8 =
  20. 20.455 × 6 =
  21. 21.152 × 4 =
  22. 22.697 × 6 =
  23. 23.246 × 7 =
  24. 24.603 × 9 =
  25. 25.119 × 9 =
  26. 26.904 × 4 =
  27. 27.339 × 8 =
  28. 28.239 × 4 =
  29. 29.272 × 8 =
  30. 30.286 × 6 =
  31. 31.936 × 8 =
  32. 32.176 × 3 =
  33. 33.801 × 8 =
  34. 34.489 × 8 =
  35. 35.135 × 4 =
  36. 36.918 × 3 =
  37. 37.635 × 3 =
  38. 38.564 × 6 =
  39. 39.338 × 5 =
  40. 40.698 × 8 =

Answer key

  1. 1344
  2. 726
  3. 2232
  4. 5103
  5. 1498
  6. 1536
  7. 5610
  8. 1180
  9. 3138
  10. 4923
  11. 4374
  12. 2772
  13. 5106
  14. 5560
  15. 924
  16. 3608
  17. 3288
  18. 2164
  19. 4704
  20. 2730
  21. 608
  22. 4182
  23. 1722
  24. 5427
  25. 1071
  26. 3616
  27. 2712
  28. 956
  29. 2176
  30. 1716
  31. 7488
  32. 528
  33. 6408
  34. 3912
  35. 540
  36. 2754
  37. 1905
  38. 3384
  39. 1690
  40. 5584

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