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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 909 · 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. 1.741 × 5 =
  2. 2.185 × 5 =
  3. 3.293 × 3 =
  4. 4.684 × 4 =
  5. 5.609 × 8 =
  6. 6.938 × 6 =
  7. 7.778 × 6 =
  8. 8.451 × 4 =
  9. 9.528 × 6 =
  10. 10.527 × 5 =
  11. 11.367 × 8 =
  12. 12.829 × 6 =
  13. 13.118 × 3 =
  14. 14.938 × 5 =
  15. 15.381 × 5 =
  16. 16.195 × 4 =
  17. 17.309 × 6 =
  18. 18.135 × 4 =
  19. 19.257 × 3 =
  20. 20.204 × 4 =
  21. 21.737 × 9 =
  22. 22.355 × 8 =
  23. 23.173 × 9 =
  24. 24.116 × 4 =
  25. 25.123 × 9 =
  26. 26.861 × 6 =
  27. 27.378 × 9 =
  28. 28.541 × 7 =
  29. 29.828 × 4 =
  30. 30.695 × 8 =
  31. 31.461 × 8 =
  32. 32.591 × 8 =
  33. 33.632 × 6 =
  34. 34.871 × 4 =
  35. 35.594 × 6 =
  36. 36.867 × 4 =
  37. 37.181 × 8 =
  38. 38.113 × 4 =
  39. 39.811 × 9 =
  40. 40.841 × 4 =

Answer key

  1. 3705
  2. 925
  3. 879
  4. 2736
  5. 4872
  6. 5628
  7. 4668
  8. 1804
  9. 3168
  10. 2635
  11. 2936
  12. 4974
  13. 354
  14. 4690
  15. 1905
  16. 780
  17. 1854
  18. 540
  19. 771
  20. 816
  21. 6633
  22. 2840
  23. 1557
  24. 464
  25. 1107
  26. 5166
  27. 3402
  28. 3787
  29. 3312
  30. 5560
  31. 3688
  32. 4728
  33. 3792
  34. 3484
  35. 3564
  36. 3468
  37. 1448
  38. 452
  39. 7299
  40. 3364

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