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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 90 · 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. 1.654 × 8 =
  2. 2.161 × 7 =
  3. 3.353 × 7 =
  4. 4.454 × 3 =
  5. 5.897 × 8 =
  6. 6.387 × 4 =
  7. 7.257 × 6 =
  8. 8.384 × 4 =
  9. 9.499 × 5 =
  10. 10.391 × 3 =
  11. 11.253 × 9 =
  12. 12.653 × 4 =
  13. 13.722 × 6 =
  14. 14.808 × 7 =
  15. 15.118 × 8 =
  16. 16.115 × 5 =
  17. 17.583 × 4 =
  18. 18.254 × 3 =
  19. 19.673 × 8 =
  20. 20.241 × 6 =
  21. 21.672 × 3 =
  22. 22.189 × 7 =
  23. 23.941 × 9 =
  24. 24.461 × 8 =
  25. 25.688 × 8 =
  26. 26.841 × 7 =
  27. 27.911 × 7 =
  28. 28.797 × 4 =
  29. 29.725 × 3 =
  30. 30.171 × 8 =
  31. 31.776 × 6 =
  32. 32.633 × 4 =
  33. 33.426 × 3 =
  34. 34.284 × 7 =
  35. 35.447 × 6 =
  36. 36.953 × 4 =
  37. 37.453 × 5 =
  38. 38.112 × 9 =
  39. 39.451 × 4 =
  40. 40.118 × 3 =

Answer key

  1. 5232
  2. 1127
  3. 2471
  4. 1362
  5. 7176
  6. 1548
  7. 1542
  8. 1536
  9. 2495
  10. 1173
  11. 2277
  12. 2612
  13. 4332
  14. 5656
  15. 944
  16. 575
  17. 2332
  18. 762
  19. 5384
  20. 1446
  21. 2016
  22. 1323
  23. 8469
  24. 3688
  25. 5504
  26. 5887
  27. 6377
  28. 3188
  29. 2175
  30. 1368
  31. 4656
  32. 2532
  33. 1278
  34. 1988
  35. 2682
  36. 3812
  37. 2265
  38. 1008
  39. 1804
  40. 354

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