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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 893 · 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. 1.721 × 7 =
  2. 2.505 × 5 =
  3. 3.413 × 3 =
  4. 4.895 × 7 =
  5. 5.129 × 9 =
  6. 6.358 × 4 =
  7. 7.216 × 9 =
  8. 8.771 × 5 =
  9. 9.614 × 3 =
  10. 10.439 × 6 =
  11. 11.798 × 3 =
  12. 12.381 × 3 =
  13. 13.755 × 4 =
  14. 14.327 × 4 =
  15. 15.506 × 9 =
  16. 16.645 × 5 =
  17. 17.596 × 3 =
  18. 18.225 × 6 =
  19. 19.359 × 3 =
  20. 20.967 × 4 =
  21. 21.833 × 3 =
  22. 22.901 × 8 =
  23. 23.848 × 3 =
  24. 24.294 × 8 =
  25. 25.268 × 5 =
  26. 26.165 × 3 =
  27. 27.418 × 4 =
  28. 28.923 × 7 =
  29. 29.168 × 7 =
  30. 30.977 × 8 =
  31. 31.239 × 4 =
  32. 32.685 × 6 =
  33. 33.475 × 8 =
  34. 34.281 × 4 =
  35. 35.542 × 7 =
  36. 36.738 × 4 =
  37. 37.721 × 3 =
  38. 38.494 × 9 =
  39. 39.668 × 4 =
  40. 40.734 × 7 =

Answer key

  1. 5047
  2. 2525
  3. 1239
  4. 6265
  5. 1161
  6. 1432
  7. 1944
  8. 3855
  9. 1842
  10. 2634
  11. 2394
  12. 1143
  13. 3020
  14. 1308
  15. 4554
  16. 3225
  17. 1788
  18. 1350
  19. 1077
  20. 3868
  21. 2499
  22. 7208
  23. 2544
  24. 2352
  25. 1340
  26. 495
  27. 1672
  28. 6461
  29. 1176
  30. 7816
  31. 956
  32. 4110
  33. 3800
  34. 1124
  35. 3794
  36. 2952
  37. 2163
  38. 4446
  39. 2672
  40. 5138

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