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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 567 · 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. 1.413 × 3 =
  2. 2.778 × 3 =
  3. 3.604 × 8 =
  4. 4.751 × 7 =
  5. 5.816 × 3 =
  6. 6.316 × 8 =
  7. 7.523 × 3 =
  8. 8.881 × 6 =
  9. 9.302 × 6 =
  10. 10.856 × 8 =
  11. 11.199 × 3 =
  12. 12.739 × 4 =
  13. 13.285 × 7 =
  14. 14.633 × 3 =
  15. 15.113 × 8 =
  16. 16.441 × 9 =
  17. 17.311 × 7 =
  18. 18.317 × 9 =
  19. 19.898 × 7 =
  20. 20.341 × 8 =
  21. 21.931 × 8 =
  22. 22.926 × 9 =
  23. 23.607 × 4 =
  24. 24.308 × 8 =
  25. 25.842 × 8 =
  26. 26.585 × 9 =
  27. 27.241 × 8 =
  28. 28.482 × 8 =
  29. 29.314 × 6 =
  30. 30.917 × 8 =
  31. 31.862 × 4 =
  32. 32.841 × 7 =
  33. 33.249 × 3 =
  34. 34.303 × 8 =
  35. 35.929 × 7 =
  36. 36.884 × 5 =
  37. 37.744 × 7 =
  38. 38.835 × 7 =
  39. 39.273 × 3 =
  40. 40.828 × 5 =

Answer key

  1. 1239
  2. 2334
  3. 4832
  4. 5257
  5. 2448
  6. 2528
  7. 1569
  8. 5286
  9. 1812
  10. 6848
  11. 597
  12. 2956
  13. 1995
  14. 1899
  15. 904
  16. 3969
  17. 2177
  18. 2853
  19. 6286
  20. 2728
  21. 7448
  22. 8334
  23. 2428
  24. 2464
  25. 6736
  26. 5265
  27. 1928
  28. 3856
  29. 1884
  30. 7336
  31. 3448
  32. 5887
  33. 747
  34. 2424
  35. 6503
  36. 4420
  37. 5208
  38. 5845
  39. 819
  40. 4140

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