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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 728 · 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. 1.708 × 3 =
  2. 2.631 × 3 =
  3. 3.271 × 4 =
  4. 4.903 × 8 =
  5. 5.699 × 5 =
  6. 6.221 × 3 =
  7. 7.724 × 4 =
  8. 8.614 × 4 =
  9. 9.378 × 7 =
  10. 10.141 × 5 =
  11. 11.444 × 9 =
  12. 12.936 × 7 =
  13. 13.811 × 6 =
  14. 14.936 × 9 =
  15. 15.151 × 3 =
  16. 16.883 × 4 =
  17. 17.547 × 6 =
  18. 18.132 × 6 =
  19. 19.489 × 3 =
  20. 20.489 × 9 =
  21. 21.847 × 6 =
  22. 22.313 × 3 =
  23. 23.245 × 7 =
  24. 24.916 × 3 =
  25. 25.433 × 3 =
  26. 26.183 × 7 =
  27. 27.761 × 8 =
  28. 28.974 × 5 =
  29. 29.947 × 8 =
  30. 30.657 × 8 =
  31. 31.194 × 8 =
  32. 32.133 × 6 =
  33. 33.662 × 7 =
  34. 34.928 × 6 =
  35. 35.324 × 3 =
  36. 36.455 × 4 =
  37. 37.136 × 5 =
  38. 38.358 × 8 =
  39. 39.295 × 3 =
  40. 40.157 × 8 =

Answer key

  1. 2124
  2. 1893
  3. 1084
  4. 7224
  5. 3495
  6. 663
  7. 2896
  8. 2456
  9. 2646
  10. 705
  11. 3996
  12. 6552
  13. 4866
  14. 8424
  15. 453
  16. 3532
  17. 3282
  18. 792
  19. 1467
  20. 4401
  21. 5082
  22. 939
  23. 1715
  24. 2748
  25. 1299
  26. 1281
  27. 6088
  28. 4870
  29. 7576
  30. 5256
  31. 1552
  32. 798
  33. 4634
  34. 5568
  35. 972
  36. 1820
  37. 680
  38. 2864
  39. 885
  40. 1256

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