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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 443 · 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. 1.645 × 6 =
  2. 2.385 × 6 =
  3. 3.891 × 3 =
  4. 4.296 × 9 =
  5. 5.751 × 4 =
  6. 6.131 × 4 =
  7. 7.364 × 8 =
  8. 8.261 × 3 =
  9. 9.829 × 3 =
  10. 10.905 × 5 =
  11. 11.121 × 3 =
  12. 12.512 × 7 =
  13. 13.367 × 6 =
  14. 14.293 × 7 =
  15. 15.312 × 4 =
  16. 16.951 × 8 =
  17. 17.915 × 8 =
  18. 18.139 × 3 =
  19. 19.802 × 9 =
  20. 20.575 × 9 =
  21. 21.427 × 4 =
  22. 22.115 × 6 =
  23. 23.794 × 4 =
  24. 24.935 × 9 =
  25. 25.607 × 9 =
  26. 26.543 × 8 =
  27. 27.907 × 6 =
  28. 28.196 × 8 =
  29. 29.464 × 4 =
  30. 30.658 × 5 =
  31. 31.442 × 3 =
  32. 32.757 × 3 =
  33. 33.561 × 3 =
  34. 34.513 × 4 =
  35. 35.904 × 8 =
  36. 36.887 × 4 =
  37. 37.477 × 7 =
  38. 38.327 × 3 =
  39. 39.273 × 5 =
  40. 40.662 × 9 =

Answer key

  1. 3870
  2. 2310
  3. 2673
  4. 2664
  5. 3004
  6. 524
  7. 2912
  8. 783
  9. 2487
  10. 4525
  11. 363
  12. 3584
  13. 2202
  14. 2051
  15. 1248
  16. 7608
  17. 7320
  18. 417
  19. 7218
  20. 5175
  21. 1708
  22. 690
  23. 3176
  24. 8415
  25. 5463
  26. 4344
  27. 5442
  28. 1568
  29. 1856
  30. 3290
  31. 1326
  32. 2271
  33. 1683
  34. 2052
  35. 7232
  36. 3548
  37. 3339
  38. 981
  39. 1365
  40. 5958

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