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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 36 · 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. 1.179 × 7 =
  2. 2.307 × 6 =
  3. 3.584 × 4 =
  4. 4.256 × 3 =
  5. 5.799 × 8 =
  6. 6.416 × 3 =
  7. 7.201 × 6 =
  8. 8.885 × 6 =
  9. 9.555 × 5 =
  10. 10.644 × 6 =
  11. 11.431 × 8 =
  12. 12.257 × 9 =
  13. 13.673 × 9 =
  14. 14.953 × 3 =
  15. 15.407 × 7 =
  16. 16.149 × 6 =
  17. 17.735 × 4 =
  18. 18.938 × 7 =
  19. 19.587 × 7 =
  20. 20.383 × 4 =
  21. 21.742 × 7 =
  22. 22.266 × 6 =
  23. 23.876 × 3 =
  24. 24.603 × 7 =
  25. 25.828 × 5 =
  26. 26.171 × 4 =
  27. 27.845 × 9 =
  28. 28.122 × 6 =
  29. 29.935 × 9 =
  30. 30.211 × 4 =
  31. 31.874 × 8 =
  32. 32.461 × 7 =
  33. 33.838 × 5 =
  34. 34.802 × 5 =
  35. 35.848 × 5 =
  36. 36.802 × 3 =
  37. 37.132 × 7 =
  38. 38.778 × 5 =
  39. 39.982 × 9 =
  40. 40.737 × 6 =

Answer key

  1. 1253
  2. 1842
  3. 2336
  4. 768
  5. 6392
  6. 1248
  7. 1206
  8. 5310
  9. 2775
  10. 3864
  11. 3448
  12. 2313
  13. 6057
  14. 2859
  15. 2849
  16. 894
  17. 2940
  18. 6566
  19. 4109
  20. 1532
  21. 5194
  22. 1596
  23. 2628
  24. 4221
  25. 4140
  26. 684
  27. 7605
  28. 732
  29. 8415
  30. 844
  31. 6992
  32. 3227
  33. 4190
  34. 4010
  35. 4240
  36. 2406
  37. 924
  38. 3890
  39. 8838
  40. 4422

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