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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 427 · 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. 1.436 × 3 =
  2. 2.586 × 3 =
  3. 3.551 × 9 =
  4. 4.299 × 4 =
  5. 5.674 × 5 =
  6. 6.275 × 7 =
  7. 7.715 × 8 =
  8. 8.759 × 5 =
  9. 9.556 × 8 =
  10. 10.847 × 9 =
  11. 11.725 × 9 =
  12. 12.565 × 4 =
  13. 13.371 × 4 =
  14. 14.242 × 5 =
  15. 15.283 × 7 =
  16. 16.766 × 5 =
  17. 17.484 × 3 =
  18. 18.635 × 3 =
  19. 19.276 × 8 =
  20. 20.732 × 3 =
  21. 21.833 × 7 =
  22. 22.406 × 9 =
  23. 23.486 × 8 =
  24. 24.856 × 5 =
  25. 25.639 × 7 =
  26. 26.191 × 7 =
  27. 27.818 × 8 =
  28. 28.236 × 3 =
  29. 29.694 × 8 =
  30. 30.568 × 3 =
  31. 31.297 × 4 =
  32. 32.753 × 7 =
  33. 33.614 × 8 =
  34. 34.858 × 8 =
  35. 35.891 × 6 =
  36. 36.634 × 8 =
  37. 37.923 × 5 =
  38. 38.174 × 6 =
  39. 39.921 × 3 =
  40. 40.585 × 4 =

Answer key

  1. 1308
  2. 1758
  3. 4959
  4. 1196
  5. 3370
  6. 1925
  7. 5720
  8. 3795
  9. 4448
  10. 7623
  11. 6525
  12. 2260
  13. 1484
  14. 1210
  15. 1981
  16. 3830
  17. 1452
  18. 1905
  19. 2208
  20. 2196
  21. 5831
  22. 3654
  23. 3888
  24. 4280
  25. 4473
  26. 1337
  27. 6544
  28. 708
  29. 5552
  30. 1704
  31. 1188
  32. 5271
  33. 4912
  34. 6864
  35. 5346
  36. 5072
  37. 4615
  38. 1044
  39. 2763
  40. 2340

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