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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 781 · 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. 1.576 × 7 =
  2. 2.848 × 3 =
  3. 3.341 × 5 =
  4. 4.701 × 7 =
  5. 5.392 × 3 =
  6. 6.607 × 9 =
  7. 7.267 × 9 =
  8. 8.414 × 5 =
  9. 9.529 × 5 =
  10. 10.336 × 4 =
  11. 11.819 × 4 =
  12. 12.566 × 7 =
  13. 13.404 × 5 =
  14. 14.815 × 9 =
  15. 15.263 × 7 =
  16. 16.116 × 4 =
  17. 17.427 × 9 =
  18. 18.419 × 9 =
  19. 19.304 × 4 =
  20. 20.451 × 4 =
  21. 21.169 × 7 =
  22. 22.211 × 5 =
  23. 23.841 × 3 =
  24. 24.429 × 5 =
  25. 25.154 × 3 =
  26. 26.147 × 8 =
  27. 27.338 × 8 =
  28. 28.783 × 9 =
  29. 29.224 × 5 =
  30. 30.732 × 7 =
  31. 31.561 × 5 =
  32. 32.199 × 4 =
  33. 33.281 × 5 =
  34. 34.896 × 9 =
  35. 35.563 × 7 =
  36. 36.951 × 6 =
  37. 37.986 × 3 =
  38. 38.322 × 4 =
  39. 39.701 × 3 =
  40. 40.642 × 3 =

Answer key

  1. 4032
  2. 2544
  3. 1705
  4. 4907
  5. 1176
  6. 5463
  7. 2403
  8. 2070
  9. 2645
  10. 1344
  11. 3276
  12. 3962
  13. 2020
  14. 7335
  15. 1841
  16. 464
  17. 3843
  18. 3771
  19. 1216
  20. 1804
  21. 1183
  22. 1055
  23. 2523
  24. 2145
  25. 462
  26. 1176
  27. 2704
  28. 7047
  29. 1120
  30. 5124
  31. 2805
  32. 796
  33. 1405
  34. 8064
  35. 3941
  36. 5706
  37. 2958
  38. 1288
  39. 2103
  40. 1926

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