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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 359 · 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. 1.148 × 9 =
  2. 2.716 × 6 =
  3. 3.724 × 3 =
  4. 4.954 × 6 =
  5. 5.989 × 4 =
  6. 6.642 × 8 =
  7. 7.734 × 8 =
  8. 8.898 × 3 =
  9. 9.939 × 5 =
  10. 10.191 × 4 =
  11. 11.391 × 8 =
  12. 12.833 × 7 =
  13. 13.825 × 4 =
  14. 14.351 × 4 =
  15. 15.692 × 5 =
  16. 16.826 × 6 =
  17. 17.421 × 8 =
  18. 18.668 × 3 =
  19. 19.492 × 6 =
  20. 20.193 × 4 =
  21. 21.417 × 3 =
  22. 22.184 × 6 =
  23. 23.144 × 5 =
  24. 24.819 × 3 =
  25. 25.267 × 8 =
  26. 26.821 × 3 =
  27. 27.512 × 4 =
  28. 28.331 × 5 =
  29. 29.962 × 6 =
  30. 30.795 × 4 =
  31. 31.425 × 8 =
  32. 32.221 × 9 =
  33. 33.501 × 5 =
  34. 34.624 × 3 =
  35. 35.167 × 7 =
  36. 36.685 × 4 =
  37. 37.702 × 3 =
  38. 38.658 × 7 =
  39. 39.298 × 6 =
  40. 40.929 × 8 =

Answer key

  1. 1332
  2. 4296
  3. 2172
  4. 5724
  5. 3956
  6. 5136
  7. 5872
  8. 2694
  9. 4695
  10. 764
  11. 3128
  12. 5831
  13. 3300
  14. 1404
  15. 3460
  16. 4956
  17. 3368
  18. 2004
  19. 2952
  20. 772
  21. 1251
  22. 1104
  23. 720
  24. 2457
  25. 2136
  26. 2463
  27. 2048
  28. 1655
  29. 5772
  30. 3180
  31. 3400
  32. 1989
  33. 2505
  34. 1872
  35. 1169
  36. 2740
  37. 2106
  38. 4606
  39. 1788
  40. 7432

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