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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 699 · 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. 1.163 × 5 =
  2. 2.253 × 9 =
  3. 3.926 × 3 =
  4. 4.909 × 6 =
  5. 5.745 × 5 =
  6. 6.264 × 4 =
  7. 7.473 × 5 =
  8. 8.167 × 8 =
  9. 9.723 × 9 =
  10. 10.762 × 8 =
  11. 11.293 × 8 =
  12. 12.266 × 7 =
  13. 13.497 × 4 =
  14. 14.429 × 6 =
  15. 15.521 × 8 =
  16. 16.264 × 9 =
  17. 17.506 × 9 =
  18. 18.414 × 6 =
  19. 19.673 × 6 =
  20. 20.328 × 7 =
  21. 21.634 × 8 =
  22. 22.653 × 7 =
  23. 23.195 × 4 =
  24. 24.254 × 5 =
  25. 25.534 × 4 =
  26. 26.551 × 4 =
  27. 27.709 × 3 =
  28. 28.571 × 6 =
  29. 29.776 × 5 =
  30. 30.863 × 5 =
  31. 31.254 × 9 =
  32. 32.649 × 4 =
  33. 33.436 × 8 =
  34. 34.555 × 6 =
  35. 35.724 × 3 =
  36. 36.222 × 7 =
  37. 37.224 × 5 =
  38. 38.222 × 3 =
  39. 39.792 × 6 =
  40. 40.541 × 8 =

Answer key

  1. 815
  2. 2277
  3. 2778
  4. 5454
  5. 3725
  6. 1056
  7. 2365
  8. 1336
  9. 6507
  10. 6096
  11. 2344
  12. 1862
  13. 1988
  14. 2574
  15. 4168
  16. 2376
  17. 4554
  18. 2484
  19. 4038
  20. 2296
  21. 5072
  22. 4571
  23. 780
  24. 1270
  25. 2136
  26. 2204
  27. 2127
  28. 3426
  29. 3880
  30. 4315
  31. 2286
  32. 2596
  33. 3488
  34. 3330
  35. 2172
  36. 1554
  37. 1120
  38. 666
  39. 4752
  40. 4328

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