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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 933 · 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. 1.439 × 4 =
  2. 2.281 × 9 =
  3. 3.376 × 5 =
  4. 4.199 × 5 =
  5. 5.537 × 8 =
  6. 6.345 × 7 =
  7. 7.892 × 7 =
  8. 8.788 × 5 =
  9. 9.709 × 4 =
  10. 10.116 × 3 =
  11. 11.769 × 9 =
  12. 12.557 × 4 =
  13. 13.492 × 6 =
  14. 14.381 × 6 =
  15. 15.581 × 8 =
  16. 16.693 × 3 =
  17. 17.655 × 5 =
  18. 18.367 × 5 =
  19. 19.551 × 3 =
  20. 20.162 × 8 =
  21. 21.901 × 3 =
  22. 22.902 × 4 =
  23. 23.251 × 4 =
  24. 24.341 × 4 =
  25. 25.284 × 9 =
  26. 26.364 × 9 =
  27. 27.769 × 8 =
  28. 28.453 × 8 =
  29. 29.203 × 3 =
  30. 30.632 × 7 =
  31. 31.122 × 8 =
  32. 32.415 × 4 =
  33. 33.289 × 7 =
  34. 34.186 × 5 =
  35. 35.145 × 7 =
  36. 36.752 × 5 =
  37. 37.946 × 5 =
  38. 38.767 × 9 =
  39. 39.142 × 8 =
  40. 40.854 × 4 =

Answer key

  1. 1756
  2. 2529
  3. 1880
  4. 995
  5. 4296
  6. 2415
  7. 6244
  8. 3940
  9. 2836
  10. 348
  11. 6921
  12. 2228
  13. 2952
  14. 2286
  15. 4648
  16. 2079
  17. 3275
  18. 1835
  19. 1653
  20. 1296
  21. 2703
  22. 3608
  23. 1004
  24. 1364
  25. 2556
  26. 3276
  27. 6152
  28. 3624
  29. 609
  30. 4424
  31. 976
  32. 1660
  33. 2023
  34. 930
  35. 1015
  36. 3760
  37. 4730
  38. 6903
  39. 1136
  40. 3416

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