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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 678 · 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. 1.131 × 4 =
  2. 2.961 × 8 =
  3. 3.154 × 7 =
  4. 4.253 × 9 =
  5. 5.865 × 6 =
  6. 6.205 × 8 =
  7. 7.916 × 8 =
  8. 8.963 × 6 =
  9. 9.301 × 4 =
  10. 10.605 × 6 =
  11. 11.681 × 3 =
  12. 12.877 × 3 =
  13. 13.441 × 9 =
  14. 14.819 × 5 =
  15. 15.671 × 6 =
  16. 16.902 × 5 =
  17. 17.639 × 3 =
  18. 18.441 × 6 =
  19. 19.192 × 8 =
  20. 20.503 × 9 =
  21. 21.765 × 5 =
  22. 22.821 × 6 =
  23. 23.221 × 5 =
  24. 24.941 × 9 =
  25. 25.217 × 9 =
  26. 26.755 × 6 =
  27. 27.671 × 3 =
  28. 28.391 × 3 =
  29. 29.854 × 7 =
  30. 30.915 × 9 =
  31. 31.497 × 3 =
  32. 32.437 × 7 =
  33. 33.381 × 3 =
  34. 34.658 × 8 =
  35. 35.181 × 4 =
  36. 36.512 × 4 =
  37. 37.799 × 7 =
  38. 38.629 × 4 =
  39. 39.799 × 8 =
  40. 40.215 × 4 =

Answer key

  1. 524
  2. 7688
  3. 1078
  4. 2277
  5. 5190
  6. 1640
  7. 7328
  8. 5778
  9. 1204
  10. 3630
  11. 2043
  12. 2631
  13. 3969
  14. 4095
  15. 4026
  16. 4510
  17. 1917
  18. 2646
  19. 1536
  20. 4527
  21. 3825
  22. 4926
  23. 1105
  24. 8469
  25. 1953
  26. 4530
  27. 2013
  28. 1173
  29. 5978
  30. 8235
  31. 1491
  32. 3059
  33. 1143
  34. 5264
  35. 724
  36. 2048
  37. 5593
  38. 2516
  39. 6392
  40. 860

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