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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 448 · 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. 1.201 × 9 =
  2. 2.275 × 4 =
  3. 3.231 × 6 =
  4. 4.409 × 5 =
  5. 5.459 × 7 =
  6. 6.331 × 3 =
  7. 7.884 × 8 =
  8. 8.332 × 7 =
  9. 9.397 × 3 =
  10. 10.412 × 7 =
  11. 11.896 × 9 =
  12. 12.291 × 9 =
  13. 13.842 × 9 =
  14. 14.622 × 4 =
  15. 15.401 × 3 =
  16. 16.801 × 3 =
  17. 17.231 × 9 =
  18. 18.181 × 9 =
  19. 19.871 × 5 =
  20. 20.438 × 3 =
  21. 21.669 × 5 =
  22. 22.271 × 9 =
  23. 23.349 × 6 =
  24. 24.394 × 5 =
  25. 25.963 × 6 =
  26. 26.342 × 5 =
  27. 27.757 × 5 =
  28. 28.183 × 9 =
  29. 29.184 × 4 =
  30. 30.695 × 6 =
  31. 31.983 × 5 =
  32. 32.486 × 4 =
  33. 33.435 × 8 =
  34. 34.231 × 8 =
  35. 35.431 × 9 =
  36. 36.518 × 8 =
  37. 37.489 × 6 =
  38. 38.282 × 6 =
  39. 39.389 × 7 =
  40. 40.294 × 9 =

Answer key

  1. 1809
  2. 1100
  3. 1386
  4. 2045
  5. 3213
  6. 993
  7. 7072
  8. 2324
  9. 1191
  10. 2884
  11. 8064
  12. 2619
  13. 7578
  14. 2488
  15. 1203
  16. 2403
  17. 2079
  18. 1629
  19. 4355
  20. 1314
  21. 3345
  22. 2439
  23. 2094
  24. 1970
  25. 5778
  26. 1710
  27. 3785
  28. 1647
  29. 736
  30. 4170
  31. 4915
  32. 1944
  33. 3480
  34. 1848
  35. 3879
  36. 4144
  37. 2934
  38. 1692
  39. 2723
  40. 2646

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