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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 568 · 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. 1.534 × 6 =
  2. 2.123 × 7 =
  3. 3.873 × 6 =
  4. 4.712 × 5 =
  5. 5.152 × 5 =
  6. 6.343 × 7 =
  7. 7.421 × 7 =
  8. 8.507 × 7 =
  9. 9.161 × 7 =
  10. 10.569 × 3 =
  11. 11.497 × 8 =
  12. 12.341 × 5 =
  13. 13.195 × 7 =
  14. 14.338 × 9 =
  15. 15.544 × 8 =
  16. 16.701 × 3 =
  17. 17.153 × 4 =
  18. 18.573 × 3 =
  19. 19.849 × 3 =
  20. 20.232 × 5 =
  21. 21.203 × 9 =
  22. 22.406 × 7 =
  23. 23.936 × 5 =
  24. 24.283 × 9 =
  25. 25.712 × 6 =
  26. 26.354 × 3 =
  27. 27.213 × 6 =
  28. 28.781 × 7 =
  29. 29.713 × 5 =
  30. 30.239 × 4 =
  31. 31.168 × 7 =
  32. 32.501 × 6 =
  33. 33.788 × 8 =
  34. 34.639 × 9 =
  35. 35.279 × 4 =
  36. 36.308 × 7 =
  37. 37.116 × 9 =
  38. 38.333 × 9 =
  39. 39.567 × 7 =
  40. 40.442 × 5 =

Answer key

  1. 3204
  2. 861
  3. 5238
  4. 3560
  5. 760
  6. 2401
  7. 2947
  8. 3549
  9. 1127
  10. 1707
  11. 3976
  12. 1705
  13. 1365
  14. 3042
  15. 4352
  16. 2103
  17. 612
  18. 1719
  19. 2547
  20. 1160
  21. 1827
  22. 2842
  23. 4680
  24. 2547
  25. 4272
  26. 1062
  27. 1278
  28. 5467
  29. 3565
  30. 956
  31. 1176
  32. 3006
  33. 6304
  34. 5751
  35. 1116
  36. 2156
  37. 1044
  38. 2997
  39. 3969
  40. 2210

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