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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 295 · 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. 1.751 × 9 =
  2. 2.445 × 3 =
  3. 3.519 × 7 =
  4. 4.758 × 5 =
  5. 5.757 × 4 =
  6. 6.351 × 5 =
  7. 7.112 × 5 =
  8. 8.159 × 4 =
  9. 9.122 × 4 =
  10. 10.502 × 7 =
  11. 11.775 × 5 =
  12. 12.156 × 8 =
  13. 13.647 × 8 =
  14. 14.835 × 8 =
  15. 15.563 × 5 =
  16. 16.943 × 5 =
  17. 17.684 × 6 =
  18. 18.408 × 5 =
  19. 19.896 × 5 =
  20. 20.876 × 9 =
  21. 21.665 × 8 =
  22. 22.505 × 8 =
  23. 23.498 × 9 =
  24. 24.455 × 3 =
  25. 25.949 × 4 =
  26. 26.475 × 4 =
  27. 27.141 × 3 =
  28. 28.337 × 3 =
  29. 29.366 × 3 =
  30. 30.621 × 5 =
  31. 31.429 × 6 =
  32. 32.161 × 4 =
  33. 33.191 × 5 =
  34. 34.926 × 3 =
  35. 35.348 × 9 =
  36. 36.456 × 9 =
  37. 37.588 × 6 =
  38. 38.761 × 3 =
  39. 39.301 × 3 =
  40. 40.261 × 6 =

Answer key

  1. 6759
  2. 1335
  3. 3633
  4. 3790
  5. 3028
  6. 1755
  7. 560
  8. 636
  9. 488
  10. 3514
  11. 3875
  12. 1248
  13. 5176
  14. 6680
  15. 2815
  16. 4715
  17. 4104
  18. 2040
  19. 4480
  20. 7884
  21. 5320
  22. 4040
  23. 4482
  24. 1365
  25. 3796
  26. 1900
  27. 423
  28. 1011
  29. 1098
  30. 3105
  31. 2574
  32. 644
  33. 955
  34. 2778
  35. 3132
  36. 4104
  37. 3528
  38. 2283
  39. 903
  40. 1566

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