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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 71 · 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. 1.408 × 7 =
  2. 2.199 × 4 =
  3. 3.548 × 3 =
  4. 4.213 × 5 =
  5. 5.278 × 6 =
  6. 6.943 × 4 =
  7. 7.559 × 7 =
  8. 8.727 × 5 =
  9. 9.836 × 6 =
  10. 10.377 × 4 =
  11. 11.652 × 8 =
  12. 12.432 × 6 =
  13. 13.118 × 5 =
  14. 14.927 × 3 =
  15. 15.279 × 9 =
  16. 16.883 × 7 =
  17. 17.674 × 8 =
  18. 18.148 × 5 =
  19. 19.891 × 3 =
  20. 20.342 × 4 =
  21. 21.381 × 4 =
  22. 22.219 × 7 =
  23. 23.861 × 3 =
  24. 24.413 × 5 =
  25. 25.647 × 3 =
  26. 26.503 × 4 =
  27. 27.739 × 8 =
  28. 28.841 × 8 =
  29. 29.883 × 9 =
  30. 30.675 × 4 =
  31. 31.229 × 9 =
  32. 32.616 × 7 =
  33. 33.355 × 8 =
  34. 34.873 × 3 =
  35. 35.275 × 9 =
  36. 36.832 × 4 =
  37. 37.119 × 5 =
  38. 38.246 × 6 =
  39. 39.904 × 5 =
  40. 40.371 × 4 =

Answer key

  1. 2856
  2. 796
  3. 1644
  4. 1065
  5. 1668
  6. 3772
  7. 3913
  8. 3635
  9. 5016
  10. 1508
  11. 5216
  12. 2592
  13. 590
  14. 2781
  15. 2511
  16. 6181
  17. 5392
  18. 740
  19. 2673
  20. 1368
  21. 1524
  22. 1533
  23. 2583
  24. 2065
  25. 1941
  26. 2012
  27. 5912
  28. 6728
  29. 7947
  30. 2700
  31. 2061
  32. 4312
  33. 2840
  34. 2619
  35. 2475
  36. 3328
  37. 595
  38. 1476
  39. 4520
  40. 1484

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