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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 965 · 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. 1.678 × 3 =
  2. 2.715 × 6 =
  3. 3.976 × 8 =
  4. 4.196 × 4 =
  5. 5.586 × 3 =
  6. 6.323 × 9 =
  7. 7.708 × 6 =
  8. 8.631 × 6 =
  9. 9.826 × 8 =
  10. 10.231 × 8 =
  11. 11.718 × 6 =
  12. 12.251 × 6 =
  13. 13.157 × 8 =
  14. 14.401 × 3 =
  15. 15.641 × 6 =
  16. 16.667 × 3 =
  17. 17.599 × 7 =
  18. 18.611 × 4 =
  19. 19.301 × 7 =
  20. 20.323 × 8 =
  21. 21.576 × 7 =
  22. 22.245 × 3 =
  23. 23.494 × 7 =
  24. 24.304 × 9 =
  25. 25.438 × 5 =
  26. 26.169 × 3 =
  27. 27.882 × 8 =
  28. 28.701 × 4 =
  29. 29.768 × 7 =
  30. 30.773 × 5 =
  31. 31.296 × 6 =
  32. 32.576 × 9 =
  33. 33.952 × 9 =
  34. 34.958 × 3 =
  35. 35.796 × 4 =
  36. 36.119 × 8 =
  37. 37.131 × 4 =
  38. 38.656 × 6 =
  39. 39.113 × 4 =
  40. 40.809 × 3 =

Answer key

  1. 2034
  2. 4290
  3. 7808
  4. 784
  5. 1758
  6. 2907
  7. 4248
  8. 3786
  9. 6608
  10. 1848
  11. 4308
  12. 1506
  13. 1256
  14. 1203
  15. 3846
  16. 2001
  17. 4193
  18. 2444
  19. 2107
  20. 2584
  21. 4032
  22. 735
  23. 3458
  24. 2736
  25. 2190
  26. 507
  27. 7056
  28. 2804
  29. 5376
  30. 3865
  31. 1776
  32. 5184
  33. 8568
  34. 2874
  35. 3184
  36. 952
  37. 524
  38. 3936
  39. 452
  40. 2427

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