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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 756 · 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. 1.418 × 7 =
  2. 2.638 × 3 =
  3. 3.331 × 6 =
  4. 4.199 × 3 =
  5. 5.545 × 4 =
  6. 6.543 × 9 =
  7. 7.626 × 4 =
  8. 8.141 × 3 =
  9. 9.533 × 5 =
  10. 10.146 × 7 =
  11. 11.221 × 4 =
  12. 12.461 × 5 =
  13. 13.815 × 8 =
  14. 14.671 × 5 =
  15. 15.121 × 7 =
  16. 16.897 × 9 =
  17. 17.659 × 3 =
  18. 18.507 × 6 =
  19. 19.265 × 4 =
  20. 20.129 × 4 =
  21. 21.623 × 3 =
  22. 22.198 × 5 =
  23. 23.339 × 6 =
  24. 24.304 × 6 =
  25. 25.437 × 5 =
  26. 26.803 × 6 =
  27. 27.888 × 6 =
  28. 28.369 × 8 =
  29. 29.892 × 7 =
  30. 30.641 × 9 =
  31. 31.921 × 5 =
  32. 32.229 × 5 =
  33. 33.195 × 7 =
  34. 34.352 × 6 =
  35. 35.372 × 3 =
  36. 36.746 × 8 =
  37. 37.355 × 7 =
  38. 38.312 × 3 =
  39. 39.141 × 7 =
  40. 40.388 × 8 =

Answer key

  1. 2926
  2. 1914
  3. 1986
  4. 597
  5. 2180
  6. 4887
  7. 2504
  8. 423
  9. 2665
  10. 1022
  11. 884
  12. 2305
  13. 6520
  14. 3355
  15. 847
  16. 8073
  17. 1977
  18. 3042
  19. 1060
  20. 516
  21. 1869
  22. 990
  23. 2034
  24. 1824
  25. 2185
  26. 4818
  27. 5328
  28. 2952
  29. 6244
  30. 5769
  31. 4605
  32. 1145
  33. 1365
  34. 2112
  35. 1116
  36. 5968
  37. 2485
  38. 936
  39. 987
  40. 3104

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