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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 319 · 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. 1.847 × 3 =
  2. 2.632 × 4 =
  3. 3.786 × 6 =
  4. 4.815 × 6 =
  5. 5.851 × 6 =
  6. 6.386 × 4 =
  7. 7.314 × 5 =
  8. 8.263 × 7 =
  9. 9.851 × 3 =
  10. 10.451 × 4 =
  11. 11.333 × 6 =
  12. 12.344 × 5 =
  13. 13.172 × 3 =
  14. 14.149 × 7 =
  15. 15.429 × 4 =
  16. 16.682 × 9 =
  17. 17.121 × 5 =
  18. 18.299 × 8 =
  19. 19.831 × 8 =
  20. 20.196 × 4 =
  21. 21.905 × 7 =
  22. 22.137 × 8 =
  23. 23.243 × 3 =
  24. 24.613 × 4 =
  25. 25.391 × 4 =
  26. 26.261 × 5 =
  27. 27.396 × 9 =
  28. 28.901 × 8 =
  29. 29.477 × 4 =
  30. 30.173 × 9 =
  31. 31.703 × 6 =
  32. 32.223 × 4 =
  33. 33.677 × 9 =
  34. 34.979 × 6 =
  35. 35.811 × 6 =
  36. 36.601 × 7 =
  37. 37.361 × 9 =
  38. 38.705 × 7 =
  39. 39.979 × 8 =
  40. 40.847 × 4 =

Answer key

  1. 2541
  2. 2528
  3. 4716
  4. 4890
  5. 5106
  6. 1544
  7. 1570
  8. 1841
  9. 2553
  10. 1804
  11. 1998
  12. 1720
  13. 516
  14. 1043
  15. 1716
  16. 6138
  17. 605
  18. 2392
  19. 6648
  20. 784
  21. 6335
  22. 1096
  23. 729
  24. 2452
  25. 1564
  26. 1305
  27. 3564
  28. 7208
  29. 1908
  30. 1557
  31. 4218
  32. 892
  33. 6093
  34. 5874
  35. 4866
  36. 4207
  37. 3249
  38. 4935
  39. 7832
  40. 3388

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