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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 900 · 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. 1.845 × 4 =
  2. 2.468 × 7 =
  3. 3.881 × 6 =
  4. 4.133 × 4 =
  5. 5.379 × 5 =
  6. 6.346 × 3 =
  7. 7.919 × 6 =
  8. 8.311 × 7 =
  9. 9.704 × 7 =
  10. 10.704 × 3 =
  11. 11.128 × 7 =
  12. 12.191 × 8 =
  13. 13.506 × 4 =
  14. 14.359 × 4 =
  15. 15.432 × 5 =
  16. 16.126 × 9 =
  17. 17.175 × 5 =
  18. 18.118 × 6 =
  19. 19.843 × 9 =
  20. 20.857 × 4 =
  21. 21.313 × 4 =
  22. 22.386 × 4 =
  23. 23.605 × 3 =
  24. 24.124 × 5 =
  25. 25.626 × 5 =
  26. 26.625 × 3 =
  27. 27.855 × 6 =
  28. 28.148 × 5 =
  29. 29.444 × 8 =
  30. 30.841 × 6 =
  31. 31.311 × 5 =
  32. 32.241 × 8 =
  33. 33.546 × 9 =
  34. 34.144 × 4 =
  35. 35.323 × 6 =
  36. 36.259 × 9 =
  37. 37.636 × 3 =
  38. 38.696 × 7 =
  39. 39.265 × 9 =
  40. 40.879 × 5 =

Answer key

  1. 3380
  2. 3276
  3. 5286
  4. 532
  5. 1895
  6. 1038
  7. 5514
  8. 2177
  9. 4928
  10. 2112
  11. 896
  12. 1528
  13. 2024
  14. 1436
  15. 2160
  16. 1134
  17. 875
  18. 708
  19. 7587
  20. 3428
  21. 1252
  22. 1544
  23. 1815
  24. 620
  25. 3130
  26. 1875
  27. 5130
  28. 740
  29. 3552
  30. 5046
  31. 1555
  32. 1928
  33. 4914
  34. 576
  35. 1938
  36. 2331
  37. 1908
  38. 4872
  39. 2385
  40. 4395

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