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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 854 · 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. 1.936 × 9 =
  2. 2.314 × 6 =
  3. 3.118 × 7 =
  4. 4.199 × 3 =
  5. 5.264 × 7 =
  6. 6.297 × 6 =
  7. 7.892 × 5 =
  8. 8.826 × 6 =
  9. 9.753 × 3 =
  10. 10.383 × 3 =
  11. 11.276 × 4 =
  12. 12.931 × 4 =
  13. 13.241 × 6 =
  14. 14.783 × 4 =
  15. 15.391 × 7 =
  16. 16.801 × 7 =
  17. 17.584 × 6 =
  18. 18.165 × 6 =
  19. 19.326 × 3 =
  20. 20.492 × 6 =
  21. 21.508 × 6 =
  22. 22.962 × 6 =
  23. 23.813 × 4 =
  24. 24.333 × 5 =
  25. 25.782 × 6 =
  26. 26.602 × 3 =
  27. 27.628 × 9 =
  28. 28.362 × 4 =
  29. 29.121 × 5 =
  30. 30.313 × 3 =
  31. 31.905 × 7 =
  32. 32.889 × 3 =
  33. 33.148 × 8 =
  34. 34.398 × 4 =
  35. 35.472 × 8 =
  36. 36.701 × 9 =
  37. 37.646 × 8 =
  38. 38.989 × 5 =
  39. 39.338 × 6 =
  40. 40.555 × 6 =

Answer key

  1. 8424
  2. 1884
  3. 826
  4. 597
  5. 1848
  6. 1782
  7. 4460
  8. 4956
  9. 2259
  10. 1149
  11. 1104
  12. 3724
  13. 1446
  14. 3132
  15. 2737
  16. 5607
  17. 3504
  18. 990
  19. 978
  20. 2952
  21. 3048
  22. 5772
  23. 3252
  24. 1665
  25. 4692
  26. 1806
  27. 5652
  28. 1448
  29. 605
  30. 939
  31. 6335
  32. 2667
  33. 1184
  34. 1592
  35. 3776
  36. 6309
  37. 5168
  38. 4945
  39. 2028
  40. 3330

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