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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 911 · 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. 1.544 × 8 =
  2. 2.721 × 6 =
  3. 3.298 × 5 =
  4. 4.518 × 8 =
  5. 5.446 × 9 =
  6. 6.476 × 6 =
  7. 7.487 × 4 =
  8. 8.762 × 6 =
  9. 9.131 × 9 =
  10. 10.316 × 6 =
  11. 11.233 × 6 =
  12. 12.718 × 4 =
  13. 13.954 × 5 =
  14. 14.378 × 8 =
  15. 15.332 × 6 =
  16. 16.253 × 8 =
  17. 17.455 × 3 =
  18. 18.348 × 8 =
  19. 19.775 × 4 =
  20. 20.658 × 4 =
  21. 21.254 × 6 =
  22. 22.524 × 3 =
  23. 23.688 × 7 =
  24. 24.488 × 5 =
  25. 25.893 × 7 =
  26. 26.667 × 3 =
  27. 27.403 × 9 =
  28. 28.648 × 8 =
  29. 29.653 × 8 =
  30. 30.221 × 6 =
  31. 31.145 × 4 =
  32. 32.391 × 5 =
  33. 33.844 × 7 =
  34. 34.568 × 4 =
  35. 35.788 × 6 =
  36. 36.593 × 6 =
  37. 37.231 × 5 =
  38. 38.341 × 4 =
  39. 39.791 × 4 =
  40. 40.178 × 5 =

Answer key

  1. 4352
  2. 4326
  3. 1490
  4. 4144
  5. 4014
  6. 2856
  7. 1948
  8. 4572
  9. 1179
  10. 1896
  11. 1398
  12. 2872
  13. 4770
  14. 3024
  15. 1992
  16. 2024
  17. 1365
  18. 2784
  19. 3100
  20. 2632
  21. 1524
  22. 1572
  23. 4816
  24. 2440
  25. 6251
  26. 2001
  27. 3627
  28. 5184
  29. 5224
  30. 1326
  31. 580
  32. 1955
  33. 5908
  34. 2272
  35. 4728
  36. 3558
  37. 1155
  38. 1364
  39. 3164
  40. 890

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