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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 416 · 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. 1.313 × 5 =
  2. 2.519 × 9 =
  3. 3.233 × 8 =
  4. 4.151 × 6 =
  5. 5.453 × 3 =
  6. 6.141 × 6 =
  7. 7.887 × 9 =
  8. 8.412 × 4 =
  9. 9.237 × 9 =
  10. 10.617 × 3 =
  11. 11.361 × 7 =
  12. 12.794 × 3 =
  13. 13.381 × 5 =
  14. 14.889 × 5 =
  15. 15.371 × 4 =
  16. 16.889 × 3 =
  17. 17.312 × 5 =
  18. 18.323 × 7 =
  19. 19.401 × 4 =
  20. 20.872 × 4 =
  21. 21.352 × 6 =
  22. 22.329 × 9 =
  23. 23.254 × 8 =
  24. 24.358 × 6 =
  25. 25.592 × 4 =
  26. 26.727 × 3 =
  27. 27.663 × 5 =
  28. 28.358 × 3 =
  29. 29.985 × 3 =
  30. 30.596 × 7 =
  31. 31.833 × 6 =
  32. 32.501 × 7 =
  33. 33.397 × 8 =
  34. 34.274 × 4 =
  35. 35.287 × 6 =
  36. 36.499 × 4 =
  37. 37.899 × 6 =
  38. 38.335 × 6 =
  39. 39.126 × 4 =
  40. 40.232 × 7 =

Answer key

  1. 1565
  2. 4671
  3. 1864
  4. 906
  5. 1359
  6. 846
  7. 7983
  8. 1648
  9. 2133
  10. 1851
  11. 2527
  12. 2382
  13. 1905
  14. 4445
  15. 1484
  16. 2667
  17. 1560
  18. 2261
  19. 1604
  20. 3488
  21. 2112
  22. 2961
  23. 2032
  24. 2148
  25. 2368
  26. 2181
  27. 3315
  28. 1074
  29. 2955
  30. 4172
  31. 4998
  32. 3507
  33. 3176
  34. 1096
  35. 1722
  36. 1996
  37. 5394
  38. 2010
  39. 504
  40. 1624

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