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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 836 · 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. 1.305 × 8 =
  2. 2.637 × 5 =
  3. 3.968 × 4 =
  4. 4.817 × 4 =
  5. 5.811 × 3 =
  6. 6.533 × 5 =
  7. 7.665 × 5 =
  8. 8.301 × 6 =
  9. 9.641 × 3 =
  10. 10.552 × 4 =
  11. 11.691 × 8 =
  12. 12.253 × 6 =
  13. 13.602 × 9 =
  14. 14.116 × 8 =
  15. 15.609 × 8 =
  16. 16.647 × 3 =
  17. 17.744 × 4 =
  18. 18.404 × 7 =
  19. 19.443 × 6 =
  20. 20.448 × 5 =
  21. 21.581 × 3 =
  22. 22.133 × 8 =
  23. 23.523 × 3 =
  24. 24.153 × 8 =
  25. 25.651 × 7 =
  26. 26.619 × 4 =
  27. 27.747 × 5 =
  28. 28.303 × 9 =
  29. 29.591 × 3 =
  30. 30.856 × 6 =
  31. 31.193 × 6 =
  32. 32.351 × 9 =
  33. 33.482 × 7 =
  34. 34.303 × 8 =
  35. 35.785 × 7 =
  36. 36.367 × 6 =
  37. 37.853 × 8 =
  38. 38.946 × 5 =
  39. 39.346 × 6 =
  40. 40.501 × 8 =

Answer key

  1. 2440
  2. 3185
  3. 3872
  4. 3268
  5. 2433
  6. 2665
  7. 3325
  8. 1806
  9. 1923
  10. 2208
  11. 5528
  12. 1518
  13. 5418
  14. 928
  15. 4872
  16. 1941
  17. 2976
  18. 2828
  19. 2658
  20. 2240
  21. 1743
  22. 1064
  23. 1569
  24. 1224
  25. 4557
  26. 2476
  27. 3735
  28. 2727
  29. 1773
  30. 5136
  31. 1158
  32. 3159
  33. 3374
  34. 2424
  35. 5495
  36. 2202
  37. 6824
  38. 4730
  39. 2076
  40. 4008

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