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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 946 · 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. 1.667 × 4 =
  2. 2.231 × 5 =
  3. 3.485 × 6 =
  4. 4.799 × 3 =
  5. 5.678 × 6 =
  6. 6.172 × 8 =
  7. 7.318 × 8 =
  8. 8.146 × 8 =
  9. 9.149 × 3 =
  10. 10.924 × 4 =
  11. 11.626 × 4 =
  12. 12.622 × 6 =
  13. 13.408 × 6 =
  14. 14.778 × 7 =
  15. 15.497 × 4 =
  16. 16.381 × 5 =
  17. 17.264 × 9 =
  18. 18.858 × 3 =
  19. 19.268 × 5 =
  20. 20.301 × 7 =
  21. 21.634 × 9 =
  22. 22.744 × 3 =
  23. 23.346 × 3 =
  24. 24.351 × 7 =
  25. 25.149 × 4 =
  26. 26.291 × 8 =
  27. 27.566 × 3 =
  28. 28.361 × 9 =
  29. 29.816 × 8 =
  30. 30.164 × 3 =
  31. 31.696 × 3 =
  32. 32.585 × 8 =
  33. 33.296 × 8 =
  34. 34.757 × 8 =
  35. 35.953 × 4 =
  36. 36.527 × 3 =
  37. 37.902 × 9 =
  38. 38.751 × 6 =
  39. 39.424 × 4 =
  40. 40.379 × 8 =

Answer key

  1. 2668
  2. 1155
  3. 2910
  4. 2397
  5. 4068
  6. 1376
  7. 2544
  8. 1168
  9. 447
  10. 3696
  11. 2504
  12. 3732
  13. 2448
  14. 5446
  15. 1988
  16. 1905
  17. 2376
  18. 2574
  19. 1340
  20. 2107
  21. 5706
  22. 2232
  23. 1038
  24. 2457
  25. 596
  26. 2328
  27. 1698
  28. 3249
  29. 6528
  30. 492
  31. 2088
  32. 4680
  33. 2368
  34. 6056
  35. 3812
  36. 1581
  37. 8118
  38. 4506
  39. 1696
  40. 3032

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