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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 870 · 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. 1.794 × 9 =
  2. 2.861 × 3 =
  3. 3.707 × 8 =
  4. 4.224 × 7 =
  5. 5.924 × 6 =
  6. 6.178 × 3 =
  7. 7.223 × 9 =
  8. 8.781 × 6 =
  9. 9.989 × 7 =
  10. 10.124 × 9 =
  11. 11.351 × 5 =
  12. 12.542 × 3 =
  13. 13.212 × 5 =
  14. 14.311 × 7 =
  15. 15.281 × 8 =
  16. 16.806 × 3 =
  17. 17.673 × 4 =
  18. 18.499 × 5 =
  19. 19.355 × 3 =
  20. 20.539 × 4 =
  21. 21.417 × 5 =
  22. 22.751 × 7 =
  23. 23.506 × 6 =
  24. 24.448 × 7 =
  25. 25.908 × 3 =
  26. 26.418 × 4 =
  27. 27.414 × 3 =
  28. 28.207 × 8 =
  29. 29.168 × 5 =
  30. 30.402 × 7 =
  31. 31.875 × 7 =
  32. 32.189 × 5 =
  33. 33.128 × 7 =
  34. 34.442 × 7 =
  35. 35.132 × 4 =
  36. 36.957 × 8 =
  37. 37.479 × 7 =
  38. 38.238 × 8 =
  39. 39.973 × 4 =
  40. 40.821 × 9 =

Answer key

  1. 7146
  2. 2583
  3. 5656
  4. 1568
  5. 5544
  6. 534
  7. 2007
  8. 4686
  9. 6923
  10. 1116
  11. 1755
  12. 1626
  13. 1060
  14. 2177
  15. 2248
  16. 2418
  17. 2692
  18. 2495
  19. 1065
  20. 2156
  21. 2085
  22. 5257
  23. 3036
  24. 3136
  25. 2724
  26. 1672
  27. 1242
  28. 1656
  29. 840
  30. 2814
  31. 6125
  32. 945
  33. 896
  34. 3094
  35. 528
  36. 7656
  37. 3353
  38. 1904
  39. 3892
  40. 7389

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