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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 776 · 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. 1.491 × 5 =
  2. 2.674 × 5 =
  3. 3.439 × 4 =
  4. 4.551 × 9 =
  5. 5.971 × 7 =
  6. 6.699 × 9 =
  7. 7.721 × 5 =
  8. 8.181 × 6 =
  9. 9.219 × 5 =
  10. 10.249 × 6 =
  11. 11.702 × 4 =
  12. 12.794 × 5 =
  13. 13.721 × 4 =
  14. 14.714 × 4 =
  15. 15.624 × 3 =
  16. 16.676 × 9 =
  17. 17.356 × 9 =
  18. 18.987 × 7 =
  19. 19.616 × 3 =
  20. 20.221 × 4 =
  21. 21.117 × 4 =
  22. 22.822 × 5 =
  23. 23.434 × 7 =
  24. 24.419 × 7 =
  25. 25.649 × 3 =
  26. 26.558 × 6 =
  27. 27.711 × 7 =
  28. 28.934 × 6 =
  29. 29.613 × 5 =
  30. 30.441 × 5 =
  31. 31.234 × 4 =
  32. 32.862 × 3 =
  33. 33.655 × 4 =
  34. 34.915 × 8 =
  35. 35.154 × 7 =
  36. 36.215 × 5 =
  37. 37.214 × 4 =
  38. 38.132 × 9 =
  39. 39.191 × 4 =
  40. 40.608 × 4 =

Answer key

  1. 2455
  2. 3370
  3. 1756
  4. 4959
  5. 6797
  6. 6291
  7. 3605
  8. 1086
  9. 1095
  10. 1494
  11. 2808
  12. 3970
  13. 2884
  14. 2856
  15. 1872
  16. 6084
  17. 3204
  18. 6909
  19. 1848
  20. 884
  21. 468
  22. 4110
  23. 3038
  24. 2933
  25. 1947
  26. 3348
  27. 4977
  28. 5604
  29. 3065
  30. 2205
  31. 936
  32. 2586
  33. 2620
  34. 7320
  35. 1078
  36. 1075
  37. 856
  38. 1188
  39. 764
  40. 2432

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