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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 265 · 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. 1.465 × 3 =
  2. 2.709 × 4 =
  3. 3.806 × 4 =
  4. 4.424 × 6 =
  5. 5.458 × 6 =
  6. 6.814 × 6 =
  7. 7.291 × 3 =
  8. 8.496 × 9 =
  9. 9.535 × 9 =
  10. 10.489 × 9 =
  11. 11.167 × 3 =
  12. 12.226 × 4 =
  13. 13.386 × 3 =
  14. 14.717 × 7 =
  15. 15.808 × 4 =
  16. 16.562 × 9 =
  17. 17.194 × 3 =
  18. 18.883 × 4 =
  19. 19.298 × 4 =
  20. 20.116 × 6 =
  21. 21.624 × 6 =
  22. 22.297 × 9 =
  23. 23.324 × 8 =
  24. 24.254 × 3 =
  25. 25.976 × 5 =
  26. 26.495 × 5 =
  27. 27.781 × 4 =
  28. 28.311 × 7 =
  29. 29.392 × 5 =
  30. 30.901 × 8 =
  31. 31.423 × 4 =
  32. 32.959 × 9 =
  33. 33.738 × 8 =
  34. 34.422 × 7 =
  35. 35.381 × 4 =
  36. 36.401 × 3 =
  37. 37.959 × 6 =
  38. 38.734 × 5 =
  39. 39.553 × 8 =
  40. 40.543 × 7 =

Answer key

  1. 1395
  2. 2836
  3. 3224
  4. 2544
  5. 2748
  6. 4884
  7. 873
  8. 4464
  9. 4815
  10. 4401
  11. 501
  12. 904
  13. 1158
  14. 5019
  15. 3232
  16. 5058
  17. 582
  18. 3532
  19. 1192
  20. 696
  21. 3744
  22. 2673
  23. 2592
  24. 762
  25. 4880
  26. 2475
  27. 3124
  28. 2177
  29. 1960
  30. 7208
  31. 1692
  32. 8631
  33. 5904
  34. 2954
  35. 1524
  36. 1203
  37. 5754
  38. 3670
  39. 4424
  40. 3801

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