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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 876 · 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. 1.811 × 7 =
  2. 2.698 × 5 =
  3. 3.458 × 6 =
  4. 4.451 × 4 =
  5. 5.209 × 4 =
  6. 6.959 × 5 =
  7. 7.951 × 8 =
  8. 8.745 × 6 =
  9. 9.921 × 6 =
  10. 10.231 × 6 =
  11. 11.165 × 5 =
  12. 12.732 × 4 =
  13. 13.753 × 6 =
  14. 14.156 × 5 =
  15. 15.853 × 4 =
  16. 16.366 × 4 =
  17. 17.309 × 6 =
  18. 18.983 × 8 =
  19. 19.975 × 3 =
  20. 20.455 × 8 =
  21. 21.511 × 4 =
  22. 22.954 × 4 =
  23. 23.351 × 6 =
  24. 24.476 × 9 =
  25. 25.439 × 8 =
  26. 26.514 × 9 =
  27. 27.445 × 8 =
  28. 28.901 × 5 =
  29. 29.468 × 9 =
  30. 30.584 × 5 =
  31. 31.661 × 7 =
  32. 32.934 × 9 =
  33. 33.363 × 7 =
  34. 34.132 × 7 =
  35. 35.317 × 5 =
  36. 36.152 × 6 =
  37. 37.775 × 9 =
  38. 38.861 × 9 =
  39. 39.407 × 4 =
  40. 40.341 × 5 =

Answer key

  1. 5677
  2. 3490
  3. 2748
  4. 1804
  5. 836
  6. 4795
  7. 7608
  8. 4470
  9. 5526
  10. 1386
  11. 825
  12. 2928
  13. 4518
  14. 780
  15. 3412
  16. 1464
  17. 1854
  18. 7864
  19. 2925
  20. 3640
  21. 2044
  22. 3816
  23. 2106
  24. 4284
  25. 3512
  26. 4626
  27. 3560
  28. 4505
  29. 4212
  30. 2920
  31. 4627
  32. 8406
  33. 2541
  34. 924
  35. 1585
  36. 912
  37. 6975
  38. 7749
  39. 1628
  40. 1705

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