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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 237 · 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. 1.405 × 7 =
  2. 2.568 × 3 =
  3. 3.201 × 3 =
  4. 4.755 × 4 =
  5. 5.752 × 3 =
  6. 6.265 × 6 =
  7. 7.841 × 8 =
  8. 8.364 × 9 =
  9. 9.201 × 8 =
  10. 10.569 × 9 =
  11. 11.849 × 4 =
  12. 12.634 × 4 =
  13. 13.536 × 3 =
  14. 14.256 × 9 =
  15. 15.327 × 4 =
  16. 16.851 × 8 =
  17. 17.327 × 5 =
  18. 18.547 × 5 =
  19. 19.271 × 8 =
  20. 20.731 × 4 =
  21. 21.966 × 6 =
  22. 22.709 × 7 =
  23. 23.275 × 6 =
  24. 24.446 × 3 =
  25. 25.217 × 6 =
  26. 26.771 × 6 =
  27. 27.532 × 3 =
  28. 28.385 × 9 =
  29. 29.301 × 3 =
  30. 30.188 × 8 =
  31. 31.789 × 8 =
  32. 32.348 × 3 =
  33. 33.923 × 5 =
  34. 34.485 × 8 =
  35. 35.671 × 3 =
  36. 36.257 × 6 =
  37. 37.493 × 4 =
  38. 38.583 × 9 =
  39. 39.261 × 8 =
  40. 40.657 × 9 =

Answer key

  1. 2835
  2. 1704
  3. 603
  4. 3020
  5. 2256
  6. 1590
  7. 6728
  8. 3276
  9. 1608
  10. 5121
  11. 3396
  12. 2536
  13. 1608
  14. 2304
  15. 1308
  16. 6808
  17. 1635
  18. 2735
  19. 2168
  20. 2924
  21. 5796
  22. 4963
  23. 1650
  24. 1338
  25. 1302
  26. 4626
  27. 1596
  28. 3465
  29. 903
  30. 1504
  31. 6312
  32. 1044
  33. 4615
  34. 3880
  35. 2013
  36. 1542
  37. 1972
  38. 5247
  39. 2088
  40. 5913

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