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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 102 · 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. 1.225 × 6 =
  2. 2.842 × 4 =
  3. 3.942 × 8 =
  4. 4.634 × 5 =
  5. 5.251 × 8 =
  6. 6.204 × 9 =
  7. 7.812 × 5 =
  8. 8.919 × 9 =
  9. 9.668 × 8 =
  10. 10.462 × 4 =
  11. 11.821 × 6 =
  12. 12.191 × 9 =
  13. 13.198 × 9 =
  14. 14.164 × 3 =
  15. 15.622 × 5 =
  16. 16.431 × 4 =
  17. 17.119 × 8 =
  18. 18.789 × 5 =
  19. 19.841 × 6 =
  20. 20.128 × 9 =
  21. 21.335 × 9 =
  22. 22.225 × 3 =
  23. 23.682 × 3 =
  24. 24.478 × 5 =
  25. 25.208 × 3 =
  26. 26.642 × 4 =
  27. 27.117 × 5 =
  28. 28.741 × 4 =
  29. 29.183 × 4 =
  30. 30.145 × 7 =
  31. 31.401 × 5 =
  32. 32.126 × 6 =
  33. 33.507 × 7 =
  34. 34.562 × 4 =
  35. 35.288 × 9 =
  36. 36.848 × 5 =
  37. 37.532 × 8 =
  38. 38.199 × 7 =
  39. 39.147 × 7 =
  40. 40.896 × 5 =

Answer key

  1. 1350
  2. 3368
  3. 7536
  4. 3170
  5. 2008
  6. 1836
  7. 4060
  8. 8271
  9. 5344
  10. 1848
  11. 4926
  12. 1719
  13. 1782
  14. 492
  15. 3110
  16. 1724
  17. 952
  18. 3945
  19. 5046
  20. 1152
  21. 3015
  22. 675
  23. 2046
  24. 2390
  25. 624
  26. 2568
  27. 585
  28. 2964
  29. 732
  30. 1015
  31. 2005
  32. 756
  33. 3549
  34. 2248
  35. 2592
  36. 4240
  37. 4256
  38. 1393
  39. 1029
  40. 4480

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