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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 406 · 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. 1.921 × 5 =
  2. 2.646 × 3 =
  3. 3.705 × 3 =
  4. 4.145 × 4 =
  5. 5.325 × 6 =
  6. 6.432 × 7 =
  7. 7.272 × 6 =
  8. 8.321 × 8 =
  9. 9.653 × 3 =
  10. 10.391 × 6 =
  11. 11.454 × 8 =
  12. 12.671 × 5 =
  13. 13.395 × 5 =
  14. 14.466 × 8 =
  15. 15.624 × 4 =
  16. 16.565 × 7 =
  17. 17.344 × 3 =
  18. 18.262 × 8 =
  19. 19.242 × 5 =
  20. 20.641 × 3 =
  21. 21.311 × 3 =
  22. 22.558 × 6 =
  23. 23.442 × 8 =
  24. 24.872 × 7 =
  25. 25.178 × 6 =
  26. 26.718 × 5 =
  27. 27.331 × 4 =
  28. 28.221 × 8 =
  29. 29.528 × 4 =
  30. 30.737 × 4 =
  31. 31.366 × 4 =
  32. 32.377 × 4 =
  33. 33.741 × 8 =
  34. 34.722 × 9 =
  35. 35.486 × 3 =
  36. 36.477 × 9 =
  37. 37.269 × 7 =
  38. 38.903 × 3 =
  39. 39.765 × 3 =
  40. 40.796 × 4 =

Answer key

  1. 4605
  2. 1938
  3. 2115
  4. 580
  5. 1950
  6. 3024
  7. 1632
  8. 2568
  9. 1959
  10. 2346
  11. 3632
  12. 3355
  13. 1975
  14. 3728
  15. 2496
  16. 3955
  17. 1032
  18. 2096
  19. 1210
  20. 1923
  21. 933
  22. 3348
  23. 3536
  24. 6104
  25. 1068
  26. 3590
  27. 1324
  28. 1768
  29. 2112
  30. 2948
  31. 1464
  32. 1508
  33. 5928
  34. 6498
  35. 1458
  36. 4293
  37. 1883
  38. 2709
  39. 2295
  40. 3184

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