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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 690 · 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. 1.161 × 8 =
  2. 2.334 × 7 =
  3. 3.631 × 8 =
  4. 4.904 × 9 =
  5. 5.367 × 7 =
  6. 6.606 × 6 =
  7. 7.145 × 5 =
  8. 8.114 × 6 =
  9. 9.117 × 3 =
  10. 10.971 × 3 =
  11. 11.116 × 3 =
  12. 12.252 × 9 =
  13. 13.242 × 5 =
  14. 14.335 × 8 =
  15. 15.243 × 4 =
  16. 16.131 × 4 =
  17. 17.914 × 3 =
  18. 18.753 × 8 =
  19. 19.502 × 9 =
  20. 20.524 × 6 =
  21. 21.367 × 3 =
  22. 22.695 × 6 =
  23. 23.588 × 4 =
  24. 24.885 × 8 =
  25. 25.193 × 7 =
  26. 26.499 × 8 =
  27. 27.321 × 3 =
  28. 28.336 × 7 =
  29. 29.739 × 9 =
  30. 30.884 × 3 =
  31. 31.301 × 3 =
  32. 32.774 × 3 =
  33. 33.665 × 6 =
  34. 34.112 × 3 =
  35. 35.561 × 9 =
  36. 36.143 × 6 =
  37. 37.331 × 8 =
  38. 38.827 × 7 =
  39. 39.591 × 6 =
  40. 40.624 × 6 =

Answer key

  1. 1288
  2. 2338
  3. 5048
  4. 8136
  5. 2569
  6. 3636
  7. 725
  8. 684
  9. 351
  10. 2913
  11. 348
  12. 2268
  13. 1210
  14. 2680
  15. 972
  16. 524
  17. 2742
  18. 6024
  19. 4518
  20. 3144
  21. 1101
  22. 4170
  23. 2352
  24. 7080
  25. 1351
  26. 3992
  27. 963
  28. 2352
  29. 6651
  30. 2652
  31. 903
  32. 2322
  33. 3990
  34. 336
  35. 5049
  36. 858
  37. 2648
  38. 5789
  39. 3546
  40. 3744

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