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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 866 · 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. 1.456 × 9 =
  2. 2.549 × 3 =
  3. 3.482 × 3 =
  4. 4.412 × 6 =
  5. 5.486 × 5 =
  6. 6.902 × 5 =
  7. 7.175 × 5 =
  8. 8.225 × 4 =
  9. 9.458 × 4 =
  10. 10.537 × 5 =
  11. 11.946 × 7 =
  12. 12.462 × 8 =
  13. 13.481 × 5 =
  14. 14.119 × 8 =
  15. 15.201 × 5 =
  16. 16.511 × 3 =
  17. 17.562 × 5 =
  18. 18.119 × 3 =
  19. 19.275 × 9 =
  20. 20.634 × 6 =
  21. 21.807 × 7 =
  22. 22.326 × 5 =
  23. 23.149 × 8 =
  24. 24.193 × 7 =
  25. 25.572 × 8 =
  26. 26.145 × 5 =
  27. 27.211 × 9 =
  28. 28.156 × 3 =
  29. 29.713 × 4 =
  30. 30.631 × 4 =
  31. 31.819 × 4 =
  32. 32.231 × 6 =
  33. 33.317 × 9 =
  34. 34.441 × 4 =
  35. 35.776 × 9 =
  36. 36.558 × 6 =
  37. 37.919 × 6 =
  38. 38.926 × 5 =
  39. 39.302 × 4 =
  40. 40.487 × 5 =

Answer key

  1. 4104
  2. 1647
  3. 1446
  4. 2472
  5. 2430
  6. 4510
  7. 875
  8. 900
  9. 1832
  10. 2685
  11. 6622
  12. 3696
  13. 2405
  14. 952
  15. 1005
  16. 1533
  17. 2810
  18. 357
  19. 2475
  20. 3804
  21. 5649
  22. 1630
  23. 1192
  24. 1351
  25. 4576
  26. 725
  27. 1899
  28. 468
  29. 2852
  30. 2524
  31. 3276
  32. 1386
  33. 2853
  34. 1764
  35. 6984
  36. 3348
  37. 5514
  38. 4630
  39. 1208
  40. 2435

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