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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 605 · 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. 1.572 × 7 =
  2. 2.685 × 6 =
  3. 3.693 × 7 =
  4. 4.781 × 6 =
  5. 5.123 × 6 =
  6. 6.844 × 9 =
  7. 7.293 × 9 =
  8. 8.531 × 6 =
  9. 9.658 × 9 =
  10. 10.568 × 9 =
  11. 11.705 × 8 =
  12. 12.319 × 4 =
  13. 13.289 × 4 =
  14. 14.202 × 3 =
  15. 15.786 × 9 =
  16. 16.473 × 7 =
  17. 17.665 × 3 =
  18. 18.231 × 6 =
  19. 19.294 × 9 =
  20. 20.478 × 9 =
  21. 21.853 × 3 =
  22. 22.585 × 7 =
  23. 23.455 × 5 =
  24. 24.278 × 6 =
  25. 25.115 × 3 =
  26. 26.275 × 3 =
  27. 27.766 × 5 =
  28. 28.805 × 6 =
  29. 29.589 × 7 =
  30. 30.858 × 5 =
  31. 31.234 × 8 =
  32. 32.917 × 8 =
  33. 33.428 × 9 =
  34. 34.341 × 6 =
  35. 35.867 × 4 =
  36. 36.201 × 8 =
  37. 37.391 × 4 =
  38. 38.135 × 4 =
  39. 39.201 × 4 =
  40. 40.403 × 9 =

Answer key

  1. 4004
  2. 4110
  3. 4851
  4. 4686
  5. 738
  6. 7596
  7. 2637
  8. 3186
  9. 5922
  10. 5112
  11. 5640
  12. 1276
  13. 1156
  14. 606
  15. 7074
  16. 3311
  17. 1995
  18. 1386
  19. 2646
  20. 4302
  21. 2559
  22. 4095
  23. 2275
  24. 1668
  25. 345
  26. 825
  27. 3830
  28. 4830
  29. 4123
  30. 4290
  31. 1872
  32. 7336
  33. 3852
  34. 2046
  35. 3468
  36. 1608
  37. 1564
  38. 540
  39. 804
  40. 3627

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