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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 112 · 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. 1.492 × 5 =
  2. 2.507 × 7 =
  3. 3.929 × 7 =
  4. 4.588 × 6 =
  5. 5.632 × 9 =
  6. 6.405 × 8 =
  7. 7.176 × 3 =
  8. 8.137 × 3 =
  9. 9.477 × 8 =
  10. 10.938 × 5 =
  11. 11.238 × 7 =
  12. 12.468 × 9 =
  13. 13.513 × 9 =
  14. 14.467 × 7 =
  15. 15.598 × 5 =
  16. 16.779 × 9 =
  17. 17.691 × 6 =
  18. 18.175 × 4 =
  19. 19.781 × 6 =
  20. 20.438 × 5 =
  21. 21.114 × 9 =
  22. 22.892 × 3 =
  23. 23.214 × 4 =
  24. 24.561 × 4 =
  25. 25.424 × 3 =
  26. 26.133 × 8 =
  27. 27.272 × 4 =
  28. 28.714 × 5 =
  29. 29.465 × 8 =
  30. 30.493 × 6 =
  31. 31.666 × 7 =
  32. 32.366 × 3 =
  33. 33.379 × 9 =
  34. 34.194 × 7 =
  35. 35.257 × 7 =
  36. 36.253 × 4 =
  37. 37.138 × 9 =
  38. 38.887 × 7 =
  39. 39.519 × 8 =
  40. 40.128 × 9 =

Answer key

  1. 2460
  2. 3549
  3. 6503
  4. 3528
  5. 5688
  6. 3240
  7. 528
  8. 411
  9. 3816
  10. 4690
  11. 1666
  12. 4212
  13. 4617
  14. 3269
  15. 2990
  16. 7011
  17. 4146
  18. 700
  19. 4686
  20. 2190
  21. 1026
  22. 2676
  23. 856
  24. 2244
  25. 1272
  26. 1064
  27. 1088
  28. 3570
  29. 3720
  30. 2958
  31. 4662
  32. 1098
  33. 3411
  34. 1358
  35. 1799
  36. 1012
  37. 1242
  38. 6209
  39. 4152
  40. 1152

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