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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 745 · 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. 1.525 × 4 =
  2. 2.911 × 5 =
  3. 3.981 × 6 =
  4. 4.263 × 8 =
  5. 5.748 × 3 =
  6. 6.561 × 5 =
  7. 7.621 × 4 =
  8. 8.483 × 3 =
  9. 9.322 × 4 =
  10. 10.361 × 7 =
  11. 11.758 × 4 =
  12. 12.145 × 4 =
  13. 13.471 × 9 =
  14. 14.347 × 3 =
  15. 15.248 × 5 =
  16. 16.229 × 3 =
  17. 17.842 × 4 =
  18. 18.861 × 7 =
  19. 19.175 × 9 =
  20. 20.249 × 9 =
  21. 21.949 × 6 =
  22. 22.207 × 8 =
  23. 23.963 × 7 =
  24. 24.235 × 3 =
  25. 25.218 × 4 =
  26. 26.565 × 6 =
  27. 27.445 × 5 =
  28. 28.271 × 3 =
  29. 29.619 × 8 =
  30. 30.536 × 3 =
  31. 31.525 × 6 =
  32. 32.251 × 4 =
  33. 33.793 × 9 =
  34. 34.401 × 7 =
  35. 35.951 × 9 =
  36. 36.305 × 5 =
  37. 37.838 × 5 =
  38. 38.301 × 5 =
  39. 39.607 × 8 =
  40. 40.555 × 4 =

Answer key

  1. 2100
  2. 4555
  3. 5886
  4. 2104
  5. 2244
  6. 2805
  7. 2484
  8. 1449
  9. 1288
  10. 2527
  11. 3032
  12. 580
  13. 4239
  14. 1041
  15. 1240
  16. 687
  17. 3368
  18. 6027
  19. 1575
  20. 2241
  21. 5694
  22. 1656
  23. 6741
  24. 705
  25. 872
  26. 3390
  27. 2225
  28. 813
  29. 4952
  30. 1608
  31. 3150
  32. 1004
  33. 7137
  34. 2807
  35. 8559
  36. 1525
  37. 4190
  38. 1505
  39. 4856
  40. 2220

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