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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 176 · 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. 1.811 × 5 =
  2. 2.595 × 6 =
  3. 3.412 × 3 =
  4. 4.509 × 4 =
  5. 5.275 × 3 =
  6. 6.829 × 3 =
  7. 7.301 × 6 =
  8. 8.563 × 9 =
  9. 9.746 × 6 =
  10. 10.486 × 7 =
  11. 11.778 × 8 =
  12. 12.865 × 3 =
  13. 13.761 × 6 =
  14. 14.167 × 5 =
  15. 15.165 × 9 =
  16. 16.748 × 9 =
  17. 17.478 × 9 =
  18. 18.564 × 5 =
  19. 19.261 × 9 =
  20. 20.916 × 9 =
  21. 21.501 × 4 =
  22. 22.396 × 9 =
  23. 23.167 × 9 =
  24. 24.713 × 7 =
  25. 25.459 × 5 =
  26. 26.161 × 4 =
  27. 27.635 × 6 =
  28. 28.369 × 9 =
  29. 29.541 × 4 =
  30. 30.808 × 4 =
  31. 31.576 × 7 =
  32. 32.618 × 8 =
  33. 33.516 × 7 =
  34. 34.977 × 9 =
  35. 35.408 × 8 =
  36. 36.293 × 5 =
  37. 37.604 × 7 =
  38. 38.918 × 8 =
  39. 39.401 × 5 =
  40. 40.326 × 3 =

Answer key

  1. 4055
  2. 3570
  3. 1236
  4. 2036
  5. 825
  6. 2487
  7. 1806
  8. 5067
  9. 4476
  10. 3402
  11. 6224
  12. 2595
  13. 4566
  14. 835
  15. 1485
  16. 6732
  17. 4302
  18. 2820
  19. 2349
  20. 8244
  21. 2004
  22. 3564
  23. 1503
  24. 4991
  25. 2295
  26. 644
  27. 3810
  28. 3321
  29. 2164
  30. 3232
  31. 4032
  32. 4944
  33. 3612
  34. 8793
  35. 3264
  36. 1465
  37. 4228
  38. 7344
  39. 2005
  40. 978

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