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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 660 · 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. 1.384 × 4 =
  2. 2.834 × 8 =
  3. 3.772 × 3 =
  4. 4.169 × 3 =
  5. 5.955 × 9 =
  6. 6.913 × 7 =
  7. 7.384 × 3 =
  8. 8.746 × 4 =
  9. 9.419 × 7 =
  10. 10.902 × 4 =
  11. 11.961 × 8 =
  12. 12.703 × 9 =
  13. 13.201 × 6 =
  14. 14.571 × 6 =
  15. 15.302 × 4 =
  16. 16.838 × 4 =
  17. 17.279 × 3 =
  18. 18.121 × 8 =
  19. 19.872 × 9 =
  20. 20.375 × 8 =
  21. 21.234 × 9 =
  22. 22.305 × 7 =
  23. 23.378 × 6 =
  24. 24.431 × 4 =
  25. 25.814 × 6 =
  26. 26.721 × 5 =
  27. 27.257 × 7 =
  28. 28.875 × 9 =
  29. 29.821 × 7 =
  30. 30.235 × 3 =
  31. 31.761 × 3 =
  32. 32.282 × 3 =
  33. 33.966 × 3 =
  34. 34.552 × 3 =
  35. 35.779 × 6 =
  36. 36.173 × 4 =
  37. 37.971 × 5 =
  38. 38.457 × 3 =
  39. 39.954 × 7 =
  40. 40.219 × 3 =

Answer key

  1. 1536
  2. 6672
  3. 2316
  4. 507
  5. 8595
  6. 6391
  7. 1152
  8. 2984
  9. 2933
  10. 3608
  11. 7688
  12. 6327
  13. 1206
  14. 3426
  15. 1208
  16. 3352
  17. 837
  18. 968
  19. 7848
  20. 3000
  21. 2106
  22. 2135
  23. 2268
  24. 1724
  25. 4884
  26. 3605
  27. 1799
  28. 7875
  29. 5747
  30. 705
  31. 2283
  32. 846
  33. 2898
  34. 1656
  35. 4674
  36. 692
  37. 4855
  38. 1371
  39. 6678
  40. 657

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