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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 872 · 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. 1.312 × 3 =
  2. 2.405 × 4 =
  3. 3.858 × 9 =
  4. 4.336 × 5 =
  5. 5.314 × 9 =
  6. 6.965 × 5 =
  7. 7.145 × 8 =
  8. 8.687 × 5 =
  9. 9.692 × 9 =
  10. 10.553 × 9 =
  11. 11.381 × 3 =
  12. 12.572 × 5 =
  13. 13.412 × 8 =
  14. 14.639 × 9 =
  15. 15.741 × 5 =
  16. 16.276 × 7 =
  17. 17.197 × 5 =
  18. 18.369 × 5 =
  19. 19.614 × 5 =
  20. 20.673 × 9 =
  21. 21.201 × 9 =
  22. 22.446 × 6 =
  23. 23.442 × 8 =
  24. 24.637 × 4 =
  25. 25.444 × 4 =
  26. 26.344 × 6 =
  27. 27.968 × 9 =
  28. 28.467 × 4 =
  29. 29.338 × 5 =
  30. 30.675 × 6 =
  31. 31.835 × 3 =
  32. 32.751 × 7 =
  33. 33.411 × 4 =
  34. 34.298 × 6 =
  35. 35.416 × 9 =
  36. 36.583 × 5 =
  37. 37.438 × 8 =
  38. 38.751 × 9 =
  39. 39.317 × 9 =
  40. 40.262 × 8 =

Answer key

  1. 936
  2. 1620
  3. 7722
  4. 1680
  5. 2826
  6. 4825
  7. 1160
  8. 3435
  9. 6228
  10. 4977
  11. 1143
  12. 2860
  13. 3296
  14. 5751
  15. 3705
  16. 1932
  17. 985
  18. 1845
  19. 3070
  20. 6057
  21. 1809
  22. 2676
  23. 3536
  24. 2548
  25. 1776
  26. 2064
  27. 8712
  28. 1868
  29. 1690
  30. 4050
  31. 2505
  32. 5257
  33. 1644
  34. 1788
  35. 3744
  36. 2915
  37. 3504
  38. 6759
  39. 2853
  40. 2096

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