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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 570 · 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. 1.715 × 5 =
  2. 2.601 × 6 =
  3. 3.467 × 3 =
  4. 4.203 × 6 =
  5. 5.464 × 7 =
  6. 6.707 × 7 =
  7. 7.734 × 4 =
  8. 8.497 × 8 =
  9. 9.376 × 8 =
  10. 10.119 × 5 =
  11. 11.751 × 8 =
  12. 12.331 × 4 =
  13. 13.224 × 9 =
  14. 14.717 × 3 =
  15. 15.914 × 6 =
  16. 16.148 × 7 =
  17. 17.394 × 4 =
  18. 18.627 × 5 =
  19. 19.932 × 3 =
  20. 20.137 × 8 =
  21. 21.839 × 6 =
  22. 22.964 × 5 =
  23. 23.892 × 4 =
  24. 24.371 × 3 =
  25. 25.848 × 5 =
  26. 26.706 × 3 =
  27. 27.823 × 5 =
  28. 28.872 × 5 =
  29. 29.445 × 4 =
  30. 30.965 × 6 =
  31. 31.791 × 5 =
  32. 32.957 × 8 =
  33. 33.503 × 3 =
  34. 34.749 × 8 =
  35. 35.498 × 7 =
  36. 36.112 × 9 =
  37. 37.514 × 7 =
  38. 38.861 × 3 =
  39. 39.318 × 5 =
  40. 40.142 × 7 =

Answer key

  1. 3575
  2. 3606
  3. 1401
  4. 1218
  5. 3248
  6. 4949
  7. 2936
  8. 3976
  9. 3008
  10. 595
  11. 6008
  12. 1324
  13. 2016
  14. 2151
  15. 5484
  16. 1036
  17. 1576
  18. 3135
  19. 2796
  20. 1096
  21. 5034
  22. 4820
  23. 3568
  24. 1113
  25. 4240
  26. 2118
  27. 4115
  28. 4360
  29. 1780
  30. 5790
  31. 3955
  32. 7656
  33. 1509
  34. 5992
  35. 3486
  36. 1008
  37. 3598
  38. 2583
  39. 1590
  40. 994

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