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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 546 · 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. 1.817 × 7 =
  2. 2.251 × 3 =
  3. 3.793 × 4 =
  4. 4.571 × 6 =
  5. 5.516 × 7 =
  6. 6.831 × 3 =
  7. 7.112 × 9 =
  8. 8.431 × 6 =
  9. 9.373 × 7 =
  10. 10.762 × 3 =
  11. 11.819 × 3 =
  12. 12.826 × 4 =
  13. 13.149 × 4 =
  14. 14.883 × 6 =
  15. 15.311 × 7 =
  16. 16.851 × 4 =
  17. 17.415 × 5 =
  18. 18.471 × 7 =
  19. 19.385 × 5 =
  20. 20.942 × 7 =
  21. 21.277 × 8 =
  22. 22.117 × 6 =
  23. 23.603 × 5 =
  24. 24.947 × 7 =
  25. 25.175 × 8 =
  26. 26.397 × 6 =
  27. 27.949 × 3 =
  28. 28.121 × 8 =
  29. 29.396 × 7 =
  30. 30.134 × 6 =
  31. 31.462 × 4 =
  32. 32.411 × 9 =
  33. 33.914 × 4 =
  34. 34.191 × 5 =
  35. 35.584 × 7 =
  36. 36.124 × 7 =
  37. 37.419 × 9 =
  38. 38.661 × 4 =
  39. 39.115 × 9 =
  40. 40.844 × 3 =

Answer key

  1. 5719
  2. 753
  3. 3172
  4. 3426
  5. 3612
  6. 2493
  7. 1008
  8. 2586
  9. 2611
  10. 2286
  11. 2457
  12. 3304
  13. 596
  14. 5298
  15. 2177
  16. 3404
  17. 2075
  18. 3297
  19. 1925
  20. 6594
  21. 2216
  22. 702
  23. 3015
  24. 6629
  25. 1400
  26. 2382
  27. 2847
  28. 968
  29. 2772
  30. 804
  31. 1848
  32. 3699
  33. 3656
  34. 955
  35. 4088
  36. 868
  37. 3771
  38. 2644
  39. 1035
  40. 2532

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