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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 42 · 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. 1.224 × 3 =
  2. 2.912 × 4 =
  3. 3.507 × 5 =
  4. 4.642 × 7 =
  5. 5.301 × 8 =
  6. 6.801 × 8 =
  7. 7.743 × 8 =
  8. 8.342 × 6 =
  9. 9.631 × 4 =
  10. 10.121 × 8 =
  11. 11.287 × 7 =
  12. 12.348 × 4 =
  13. 13.505 × 3 =
  14. 14.932 × 6 =
  15. 15.298 × 8 =
  16. 16.621 × 6 =
  17. 17.882 × 9 =
  18. 18.129 × 4 =
  19. 19.179 × 4 =
  20. 20.551 × 7 =
  21. 21.941 × 8 =
  22. 22.407 × 3 =
  23. 23.211 × 3 =
  24. 24.717 × 4 =
  25. 25.447 × 4 =
  26. 26.709 × 4 =
  27. 27.251 × 7 =
  28. 28.142 × 6 =
  29. 29.836 × 3 =
  30. 30.583 × 4 =
  31. 31.312 × 5 =
  32. 32.199 × 6 =
  33. 33.197 × 7 =
  34. 34.328 × 3 =
  35. 35.638 × 5 =
  36. 36.562 × 4 =
  37. 37.272 × 8 =
  38. 38.629 × 8 =
  39. 39.511 × 3 =
  40. 40.451 × 6 =

Answer key

  1. 672
  2. 3648
  3. 2535
  4. 4494
  5. 2408
  6. 6408
  7. 5944
  8. 2052
  9. 2524
  10. 968
  11. 2009
  12. 1392
  13. 1515
  14. 5592
  15. 2384
  16. 3726
  17. 7938
  18. 516
  19. 716
  20. 3857
  21. 7528
  22. 1221
  23. 633
  24. 2868
  25. 1788
  26. 2836
  27. 1757
  28. 852
  29. 2508
  30. 2332
  31. 1560
  32. 1194
  33. 1379
  34. 984
  35. 3190
  36. 2248
  37. 2176
  38. 5032
  39. 1533
  40. 2706

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