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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 918 · 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. 1.531 × 3 =
  2. 2.317 × 4 =
  3. 3.184 × 7 =
  4. 4.617 × 5 =
  5. 5.151 × 7 =
  6. 6.373 × 6 =
  7. 7.899 × 4 =
  8. 8.231 × 3 =
  9. 9.944 × 5 =
  10. 10.699 × 8 =
  11. 11.825 × 5 =
  12. 12.588 × 3 =
  13. 13.262 × 6 =
  14. 14.672 × 7 =
  15. 15.372 × 6 =
  16. 16.161 × 3 =
  17. 17.246 × 3 =
  18. 18.812 × 9 =
  19. 19.707 × 6 =
  20. 20.943 × 3 =
  21. 21.337 × 9 =
  22. 22.531 × 6 =
  23. 23.702 × 4 =
  24. 24.483 × 9 =
  25. 25.376 × 7 =
  26. 26.908 × 8 =
  27. 27.248 × 7 =
  28. 28.743 × 8 =
  29. 29.714 × 8 =
  30. 30.309 × 3 =
  31. 31.497 × 9 =
  32. 32.146 × 3 =
  33. 33.558 × 4 =
  34. 34.399 × 8 =
  35. 35.897 × 7 =
  36. 36.606 × 7 =
  37. 37.344 × 4 =
  38. 38.656 × 9 =
  39. 39.491 × 6 =
  40. 40.745 × 5 =

Answer key

  1. 1593
  2. 1268
  3. 1288
  4. 3085
  5. 1057
  6. 2238
  7. 3596
  8. 693
  9. 4720
  10. 5592
  11. 4125
  12. 1764
  13. 1572
  14. 4704
  15. 2232
  16. 483
  17. 738
  18. 7308
  19. 4242
  20. 2829
  21. 3033
  22. 3186
  23. 2808
  24. 4347
  25. 2632
  26. 7264
  27. 1736
  28. 5944
  29. 5712
  30. 927
  31. 4473
  32. 438
  33. 2232
  34. 3192
  35. 6279
  36. 4242
  37. 1376
  38. 5904
  39. 2946
  40. 3725

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