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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 449 · 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. 1.697 × 7 =
  2. 2.313 × 9 =
  3. 3.782 × 3 =
  4. 4.301 × 3 =
  5. 5.456 × 4 =
  6. 6.383 × 8 =
  7. 7.782 × 9 =
  8. 8.466 × 9 =
  9. 9.608 × 7 =
  10. 10.194 × 5 =
  11. 11.676 × 4 =
  12. 12.126 × 8 =
  13. 13.199 × 3 =
  14. 14.412 × 6 =
  15. 15.158 × 3 =
  16. 16.626 × 7 =
  17. 17.341 × 7 =
  18. 18.644 × 3 =
  19. 19.206 × 6 =
  20. 20.581 × 7 =
  21. 21.659 × 3 =
  22. 22.692 × 8 =
  23. 23.665 × 6 =
  24. 24.201 × 3 =
  25. 25.939 × 3 =
  26. 26.868 × 7 =
  27. 27.172 × 4 =
  28. 28.361 × 6 =
  29. 29.314 × 6 =
  30. 30.193 × 8 =
  31. 31.945 × 4 =
  32. 32.971 × 3 =
  33. 33.678 × 6 =
  34. 34.578 × 6 =
  35. 35.683 × 3 =
  36. 36.131 × 9 =
  37. 37.335 × 3 =
  38. 38.244 × 7 =
  39. 39.871 × 8 =
  40. 40.159 × 8 =

Answer key

  1. 4879
  2. 2817
  3. 2346
  4. 903
  5. 1824
  6. 3064
  7. 7038
  8. 4194
  9. 4256
  10. 970
  11. 2704
  12. 1008
  13. 597
  14. 2472
  15. 474
  16. 4382
  17. 2387
  18. 1932
  19. 1236
  20. 4067
  21. 1977
  22. 5536
  23. 3990
  24. 603
  25. 2817
  26. 6076
  27. 688
  28. 2166
  29. 1884
  30. 1544
  31. 3780
  32. 2913
  33. 4068
  34. 3468
  35. 2049
  36. 1179
  37. 1005
  38. 1708
  39. 6968
  40. 1272

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