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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 381 · 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. 1.719 × 7 =
  2. 2.213 × 6 =
  3. 3.436 × 5 =
  4. 4.309 × 9 =
  5. 5.774 × 8 =
  6. 6.358 × 6 =
  7. 7.281 × 5 =
  8. 8.887 × 8 =
  9. 9.191 × 3 =
  10. 10.338 × 4 =
  11. 11.907 × 8 =
  12. 12.634 × 5 =
  13. 13.293 × 4 =
  14. 14.461 × 9 =
  15. 15.482 × 7 =
  16. 16.121 × 8 =
  17. 17.797 × 5 =
  18. 18.577 × 5 =
  19. 19.918 × 3 =
  20. 20.899 × 3 =
  21. 21.384 × 6 =
  22. 22.827 × 7 =
  23. 23.404 × 4 =
  24. 24.388 × 8 =
  25. 25.881 × 7 =
  26. 26.318 × 3 =
  27. 27.844 × 3 =
  28. 28.608 × 5 =
  29. 29.945 × 3 =
  30. 30.585 × 6 =
  31. 31.906 × 6 =
  32. 32.189 × 5 =
  33. 33.241 × 5 =
  34. 34.632 × 3 =
  35. 35.395 × 6 =
  36. 36.371 × 8 =
  37. 37.702 × 6 =
  38. 38.506 × 4 =
  39. 39.125 × 6 =
  40. 40.136 × 5 =

Answer key

  1. 5033
  2. 1278
  3. 2180
  4. 2781
  5. 6192
  6. 2148
  7. 1405
  8. 7096
  9. 573
  10. 1352
  11. 7256
  12. 3170
  13. 1172
  14. 4149
  15. 3374
  16. 968
  17. 3985
  18. 2885
  19. 2754
  20. 2697
  21. 2304
  22. 5789
  23. 1616
  24. 3104
  25. 6167
  26. 954
  27. 2532
  28. 3040
  29. 2835
  30. 3510
  31. 5436
  32. 945
  33. 1205
  34. 1896
  35. 2370
  36. 2968
  37. 4212
  38. 2024
  39. 750
  40. 680

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