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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 713 · 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. 1.367 × 3 =
  2. 2.989 × 6 =
  3. 3.913 × 9 =
  4. 4.484 × 6 =
  5. 5.385 × 4 =
  6. 6.984 × 4 =
  7. 7.297 × 3 =
  8. 8.841 × 3 =
  9. 9.861 × 7 =
  10. 10.126 × 7 =
  11. 11.637 × 5 =
  12. 12.669 × 9 =
  13. 13.762 × 3 =
  14. 14.307 × 6 =
  15. 15.774 × 5 =
  16. 16.928 × 6 =
  17. 17.485 × 8 =
  18. 18.675 × 8 =
  19. 19.367 × 8 =
  20. 20.143 × 4 =
  21. 21.163 × 9 =
  22. 22.281 × 6 =
  23. 23.901 × 7 =
  24. 24.773 × 7 =
  25. 25.981 × 3 =
  26. 26.309 × 7 =
  27. 27.856 × 3 =
  28. 28.449 × 8 =
  29. 29.277 × 6 =
  30. 30.666 × 4 =
  31. 31.706 × 9 =
  32. 32.493 × 6 =
  33. 33.471 × 6 =
  34. 34.219 × 7 =
  35. 35.339 × 4 =
  36. 36.379 × 5 =
  37. 37.604 × 8 =
  38. 38.593 × 5 =
  39. 39.142 × 7 =
  40. 40.713 × 5 =

Answer key

  1. 1101
  2. 5934
  3. 8217
  4. 2904
  5. 1540
  6. 3936
  7. 891
  8. 2523
  9. 6027
  10. 882
  11. 3185
  12. 6021
  13. 2286
  14. 1842
  15. 3870
  16. 5568
  17. 3880
  18. 5400
  19. 2936
  20. 572
  21. 1467
  22. 1686
  23. 6307
  24. 5411
  25. 2943
  26. 2163
  27. 2568
  28. 3592
  29. 1662
  30. 2664
  31. 6354
  32. 2958
  33. 2826
  34. 1533
  35. 1356
  36. 1895
  37. 4832
  38. 2965
  39. 994
  40. 3565

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