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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 333 · 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. 1.853 × 7 =
  2. 2.591 × 7 =
  3. 3.507 × 7 =
  4. 4.333 × 4 =
  5. 5.727 × 3 =
  6. 6.888 × 7 =
  7. 7.419 × 7 =
  8. 8.248 × 9 =
  9. 9.423 × 7 =
  10. 10.286 × 6 =
  11. 11.715 × 4 =
  12. 12.401 × 7 =
  13. 13.565 × 4 =
  14. 14.733 × 5 =
  15. 15.687 × 6 =
  16. 16.138 × 7 =
  17. 17.775 × 6 =
  18. 18.954 × 5 =
  19. 19.598 × 8 =
  20. 20.796 × 5 =
  21. 21.572 × 7 =
  22. 22.987 × 5 =
  23. 23.881 × 7 =
  24. 24.611 × 3 =
  25. 25.511 × 9 =
  26. 26.539 × 9 =
  27. 27.562 × 3 =
  28. 28.902 × 6 =
  29. 29.749 × 9 =
  30. 30.585 × 6 =
  31. 31.424 × 5 =
  32. 32.363 × 3 =
  33. 33.797 × 8 =
  34. 34.351 × 4 =
  35. 35.429 × 3 =
  36. 36.216 × 3 =
  37. 37.291 × 3 =
  38. 38.816 × 3 =
  39. 39.609 × 9 =
  40. 40.463 × 5 =

Answer key

  1. 5971
  2. 4137
  3. 3549
  4. 1332
  5. 2181
  6. 6216
  7. 2933
  8. 2232
  9. 2961
  10. 1716
  11. 2860
  12. 2807
  13. 2260
  14. 3665
  15. 4122
  16. 966
  17. 4650
  18. 4770
  19. 4784
  20. 3980
  21. 4004
  22. 4935
  23. 6167
  24. 1833
  25. 4599
  26. 4851
  27. 1686
  28. 5412
  29. 6741
  30. 3510
  31. 2120
  32. 1089
  33. 6376
  34. 1404
  35. 1287
  36. 648
  37. 873
  38. 2448
  39. 5481
  40. 2315

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