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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 931 · 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. 1.503 × 3 =
  2. 2.656 × 3 =
  3. 3.801 × 4 =
  4. 4.501 × 4 =
  5. 5.963 × 6 =
  6. 6.169 × 3 =
  7. 7.695 × 3 =
  8. 8.206 × 7 =
  9. 9.525 × 8 =
  10. 10.325 × 9 =
  11. 11.163 × 3 =
  12. 12.134 × 6 =
  13. 13.192 × 3 =
  14. 14.192 × 5 =
  15. 15.315 × 8 =
  16. 16.597 × 4 =
  17. 17.498 × 3 =
  18. 18.361 × 5 =
  19. 19.884 × 7 =
  20. 20.126 × 8 =
  21. 21.788 × 7 =
  22. 22.462 × 6 =
  23. 23.281 × 3 =
  24. 24.511 × 9 =
  25. 25.481 × 3 =
  26. 26.732 × 7 =
  27. 27.713 × 8 =
  28. 28.746 × 8 =
  29. 29.206 × 3 =
  30. 30.239 × 4 =
  31. 31.159 × 9 =
  32. 32.779 × 6 =
  33. 33.791 × 3 =
  34. 34.908 × 8 =
  35. 35.137 × 4 =
  36. 36.948 × 6 =
  37. 37.232 × 3 =
  38. 38.456 × 4 =
  39. 39.477 × 9 =
  40. 40.332 × 3 =

Answer key

  1. 1509
  2. 1968
  3. 3204
  4. 2004
  5. 5778
  6. 507
  7. 2085
  8. 1442
  9. 4200
  10. 2925
  11. 489
  12. 804
  13. 576
  14. 960
  15. 2520
  16. 2388
  17. 1494
  18. 1805
  19. 6188
  20. 1008
  21. 5516
  22. 2772
  23. 843
  24. 4599
  25. 1443
  26. 5124
  27. 5704
  28. 5968
  29. 618
  30. 956
  31. 1431
  32. 4674
  33. 2373
  34. 7264
  35. 548
  36. 5688
  37. 696
  38. 1824
  39. 4293
  40. 996

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