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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 323 · 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. 1.446 × 3 =
  2. 2.344 × 6 =
  3. 3.741 × 3 =
  4. 4.619 × 5 =
  5. 5.971 × 8 =
  6. 6.634 × 3 =
  7. 7.719 × 5 =
  8. 8.431 × 6 =
  9. 9.611 × 9 =
  10. 10.317 × 6 =
  11. 11.162 × 9 =
  12. 12.729 × 7 =
  13. 13.351 × 4 =
  14. 14.728 × 6 =
  15. 15.343 × 4 =
  16. 16.452 × 5 =
  17. 17.161 × 5 =
  18. 18.922 × 6 =
  19. 19.749 × 6 =
  20. 20.805 × 9 =
  21. 21.509 × 7 =
  22. 22.162 × 6 =
  23. 23.293 × 8 =
  24. 24.134 × 8 =
  25. 25.268 × 8 =
  26. 26.544 × 3 =
  27. 27.921 × 8 =
  28. 28.257 × 5 =
  29. 29.143 × 9 =
  30. 30.883 × 8 =
  31. 31.467 × 4 =
  32. 32.858 × 8 =
  33. 33.643 × 9 =
  34. 34.921 × 4 =
  35. 35.899 × 4 =
  36. 36.987 × 4 =
  37. 37.237 × 3 =
  38. 38.171 × 3 =
  39. 39.284 × 4 =
  40. 40.327 × 4 =

Answer key

  1. 1338
  2. 2064
  3. 2223
  4. 3095
  5. 7768
  6. 1902
  7. 3595
  8. 2586
  9. 5499
  10. 1902
  11. 1458
  12. 5103
  13. 1404
  14. 4368
  15. 1372
  16. 2260
  17. 805
  18. 5532
  19. 4494
  20. 7245
  21. 3563
  22. 972
  23. 2344
  24. 1072
  25. 2144
  26. 1632
  27. 7368
  28. 1285
  29. 1287
  30. 7064
  31. 1868
  32. 6864
  33. 5787
  34. 3684
  35. 3596
  36. 3948
  37. 711
  38. 513
  39. 1136
  40. 1308

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