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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 173 · 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. 1.517 × 8 =
  2. 2.589 × 9 =
  3. 3.793 × 5 =
  4. 4.308 × 6 =
  5. 5.202 × 3 =
  6. 6.639 × 6 =
  7. 7.542 × 4 =
  8. 8.384 × 8 =
  9. 9.341 × 7 =
  10. 10.618 × 6 =
  11. 11.489 × 9 =
  12. 12.561 × 5 =
  13. 13.145 × 7 =
  14. 14.178 × 7 =
  15. 15.931 × 4 =
  16. 16.188 × 8 =
  17. 17.351 × 9 =
  18. 18.146 × 6 =
  19. 19.181 × 5 =
  20. 20.432 × 5 =
  21. 21.505 × 4 =
  22. 22.234 × 9 =
  23. 23.472 × 4 =
  24. 24.952 × 6 =
  25. 25.735 × 9 =
  26. 26.877 × 7 =
  27. 27.222 × 9 =
  28. 28.857 × 4 =
  29. 29.196 × 7 =
  30. 30.224 × 4 =
  31. 31.781 × 5 =
  32. 32.558 × 9 =
  33. 33.669 × 3 =
  34. 34.594 × 7 =
  35. 35.251 × 9 =
  36. 36.465 × 4 =
  37. 37.211 × 7 =
  38. 38.492 × 7 =
  39. 39.718 × 6 =
  40. 40.113 × 3 =

Answer key

  1. 4136
  2. 5301
  3. 3965
  4. 1848
  5. 606
  6. 3834
  7. 2168
  8. 3072
  9. 2387
  10. 3708
  11. 4401
  12. 2805
  13. 1015
  14. 1246
  15. 3724
  16. 1504
  17. 3159
  18. 876
  19. 905
  20. 2160
  21. 2020
  22. 2106
  23. 1888
  24. 5712
  25. 6615
  26. 6139
  27. 1998
  28. 3428
  29. 1372
  30. 896
  31. 3905
  32. 5022
  33. 2007
  34. 4158
  35. 2259
  36. 1860
  37. 1477
  38. 3444
  39. 4308
  40. 339

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