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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 306 · 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. 1.299 × 7 =
  2. 2.898 × 5 =
  3. 3.706 × 4 =
  4. 4.291 × 9 =
  5. 5.804 × 9 =
  6. 6.749 × 5 =
  7. 7.271 × 3 =
  8. 8.641 × 9 =
  9. 9.852 × 8 =
  10. 10.348 × 7 =
  11. 11.657 × 6 =
  12. 12.188 × 3 =
  13. 13.944 × 6 =
  14. 14.335 × 6 =
  15. 15.536 × 3 =
  16. 16.292 × 6 =
  17. 17.721 × 8 =
  18. 18.816 × 3 =
  19. 19.141 × 9 =
  20. 20.254 × 8 =
  21. 21.134 × 3 =
  22. 22.419 × 7 =
  23. 23.234 × 6 =
  24. 24.678 × 4 =
  25. 25.517 × 7 =
  26. 26.843 × 3 =
  27. 27.447 × 5 =
  28. 28.293 × 3 =
  29. 29.616 × 3 =
  30. 30.185 × 8 =
  31. 31.923 × 7 =
  32. 32.866 × 9 =
  33. 33.278 × 6 =
  34. 34.223 × 4 =
  35. 35.321 × 6 =
  36. 36.865 × 3 =
  37. 37.255 × 7 =
  38. 38.741 × 9 =
  39. 39.264 × 8 =
  40. 40.975 × 6 =

Answer key

  1. 2093
  2. 4490
  3. 2824
  4. 2619
  5. 7236
  6. 3745
  7. 813
  8. 5769
  9. 6816
  10. 2436
  11. 3942
  12. 564
  13. 5664
  14. 2010
  15. 1608
  16. 1752
  17. 5768
  18. 2448
  19. 1269
  20. 2032
  21. 402
  22. 2933
  23. 1404
  24. 2712
  25. 3619
  26. 2529
  27. 2235
  28. 879
  29. 1848
  30. 1480
  31. 6461
  32. 7794
  33. 1668
  34. 892
  35. 1926
  36. 2595
  37. 1785
  38. 6669
  39. 2112
  40. 5850

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