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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 81 · 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. 1.897 × 6 =
  2. 2.555 × 6 =
  3. 3.375 × 3 =
  4. 4.659 × 3 =
  5. 5.922 × 8 =
  6. 6.774 × 6 =
  7. 7.894 × 9 =
  8. 8.438 × 4 =
  9. 9.968 × 3 =
  10. 10.114 × 7 =
  11. 11.295 × 3 =
  12. 12.304 × 4 =
  13. 13.186 × 7 =
  14. 14.435 × 3 =
  15. 15.314 × 6 =
  16. 16.466 × 8 =
  17. 17.989 × 3 =
  18. 18.321 × 9 =
  19. 19.298 × 5 =
  20. 20.941 × 6 =
  21. 21.184 × 6 =
  22. 22.844 × 8 =
  23. 23.268 × 5 =
  24. 24.608 × 8 =
  25. 25.449 × 3 =
  26. 26.134 × 8 =
  27. 27.262 × 5 =
  28. 28.343 × 5 =
  29. 29.896 × 5 =
  30. 30.364 × 4 =
  31. 31.425 × 4 =
  32. 32.231 × 9 =
  33. 33.436 × 5 =
  34. 34.152 × 9 =
  35. 35.239 × 5 =
  36. 36.721 × 8 =
  37. 37.691 × 3 =
  38. 38.777 × 4 =
  39. 39.219 × 7 =
  40. 40.481 × 4 =

Answer key

  1. 5382
  2. 3330
  3. 1125
  4. 1977
  5. 7376
  6. 4644
  7. 8046
  8. 1752
  9. 2904
  10. 798
  11. 885
  12. 1216
  13. 1302
  14. 1305
  15. 1884
  16. 3728
  17. 2967
  18. 2889
  19. 1490
  20. 5646
  21. 1104
  22. 6752
  23. 1340
  24. 4864
  25. 1347
  26. 1072
  27. 1310
  28. 1715
  29. 4480
  30. 1456
  31. 1700
  32. 2079
  33. 2180
  34. 1368
  35. 1195
  36. 5768
  37. 2073
  38. 3108
  39. 1533
  40. 1924

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