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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 879 · 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. 1.149 × 3 =
  2. 2.727 × 7 =
  3. 3.743 × 3 =
  4. 4.642 × 4 =
  5. 5.593 × 6 =
  6. 6.805 × 3 =
  7. 7.217 × 3 =
  8. 8.214 × 4 =
  9. 9.647 × 3 =
  10. 10.885 × 4 =
  11. 11.505 × 6 =
  12. 12.954 × 3 =
  13. 13.252 × 9 =
  14. 14.583 × 9 =
  15. 15.136 × 8 =
  16. 16.511 × 6 =
  17. 17.336 × 3 =
  18. 18.181 × 3 =
  19. 19.436 × 5 =
  20. 20.283 × 9 =
  21. 21.207 × 3 =
  22. 22.731 × 3 =
  23. 23.708 × 8 =
  24. 24.249 × 7 =
  25. 25.172 × 8 =
  26. 26.922 × 3 =
  27. 27.844 × 8 =
  28. 28.861 × 7 =
  29. 29.431 × 9 =
  30. 30.395 × 7 =
  31. 31.377 × 5 =
  32. 32.685 × 7 =
  33. 33.131 × 3 =
  34. 34.357 × 9 =
  35. 35.165 × 4 =
  36. 36.883 × 4 =
  37. 37.828 × 9 =
  38. 38.366 × 9 =
  39. 39.351 × 3 =
  40. 40.941 × 8 =

Answer key

  1. 447
  2. 5089
  3. 2229
  4. 2568
  5. 3558
  6. 2415
  7. 651
  8. 856
  9. 1941
  10. 3540
  11. 3030
  12. 2862
  13. 2268
  14. 5247
  15. 1088
  16. 3066
  17. 1008
  18. 543
  19. 2180
  20. 2547
  21. 621
  22. 2193
  23. 5664
  24. 1743
  25. 1376
  26. 2766
  27. 6752
  28. 6027
  29. 3879
  30. 2765
  31. 1885
  32. 4795
  33. 393
  34. 3213
  35. 660
  36. 3532
  37. 7452
  38. 3294
  39. 1053
  40. 7528

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