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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 571 · 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. 1.721 × 4 =
  2. 2.424 × 3 =
  3. 3.377 × 6 =
  4. 4.741 × 9 =
  5. 5.861 × 5 =
  6. 6.383 × 9 =
  7. 7.459 × 9 =
  8. 8.771 × 8 =
  9. 9.583 × 5 =
  10. 10.955 × 8 =
  11. 11.585 × 7 =
  12. 12.797 × 9 =
  13. 13.457 × 3 =
  14. 14.523 × 5 =
  15. 15.478 × 4 =
  16. 16.476 × 7 =
  17. 17.533 × 4 =
  18. 18.117 × 4 =
  19. 19.143 × 3 =
  20. 20.986 × 7 =
  21. 21.445 × 9 =
  22. 22.953 × 3 =
  23. 23.575 × 6 =
  24. 24.729 × 3 =
  25. 25.282 × 7 =
  26. 26.659 × 3 =
  27. 27.797 × 7 =
  28. 28.451 × 5 =
  29. 29.982 × 6 =
  30. 30.986 × 5 =
  31. 31.896 × 8 =
  32. 32.361 × 6 =
  33. 33.531 × 9 =
  34. 34.407 × 7 =
  35. 35.969 × 9 =
  36. 36.905 × 7 =
  37. 37.211 × 7 =
  38. 38.803 × 3 =
  39. 39.311 × 3 =
  40. 40.515 × 7 =

Answer key

  1. 2884
  2. 1272
  3. 2262
  4. 6669
  5. 4305
  6. 3447
  7. 4131
  8. 6168
  9. 2915
  10. 7640
  11. 4095
  12. 7173
  13. 1371
  14. 2615
  15. 1912
  16. 3332
  17. 2132
  18. 468
  19. 429
  20. 6902
  21. 4005
  22. 2859
  23. 3450
  24. 2187
  25. 1974
  26. 1977
  27. 5579
  28. 2255
  29. 5892
  30. 4930
  31. 7168
  32. 2166
  33. 4779
  34. 2849
  35. 8721
  36. 6335
  37. 1477
  38. 2409
  39. 933
  40. 3605

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