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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 898 · 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. 1.401 × 7 =
  2. 2.973 × 7 =
  3. 3.976 × 4 =
  4. 4.847 × 5 =
  5. 5.829 × 4 =
  6. 6.596 × 7 =
  7. 7.273 × 7 =
  8. 8.738 × 3 =
  9. 9.116 × 5 =
  10. 10.534 × 7 =
  11. 11.972 × 4 =
  12. 12.131 × 9 =
  13. 13.178 × 3 =
  14. 14.868 × 3 =
  15. 15.431 × 8 =
  16. 16.718 × 4 =
  17. 17.796 × 4 =
  18. 18.196 × 3 =
  19. 19.633 × 3 =
  20. 20.418 × 5 =
  21. 21.506 × 6 =
  22. 22.309 × 5 =
  23. 23.504 × 5 =
  24. 24.737 × 3 =
  25. 25.125 × 3 =
  26. 26.234 × 9 =
  27. 27.159 × 4 =
  28. 28.465 × 9 =
  29. 29.977 × 5 =
  30. 30.218 × 6 =
  31. 31.368 × 7 =
  32. 32.793 × 4 =
  33. 33.948 × 9 =
  34. 34.914 × 3 =
  35. 35.389 × 7 =
  36. 36.811 × 3 =
  37. 37.689 × 8 =
  38. 38.623 × 4 =
  39. 39.154 × 4 =
  40. 40.851 × 5 =

Answer key

  1. 2807
  2. 6811
  3. 3904
  4. 4235
  5. 3316
  6. 4172
  7. 1911
  8. 2214
  9. 580
  10. 3738
  11. 3888
  12. 1179
  13. 534
  14. 2604
  15. 3448
  16. 2872
  17. 3184
  18. 588
  19. 1899
  20. 2090
  21. 3036
  22. 1545
  23. 2520
  24. 2211
  25. 375
  26. 2106
  27. 636
  28. 4185
  29. 4885
  30. 1308
  31. 2576
  32. 3172
  33. 8532
  34. 2742
  35. 2723
  36. 2433
  37. 5512
  38. 2492
  39. 616
  40. 4255

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