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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 959 · 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. 1.213 × 8 =
  2. 2.291 × 7 =
  3. 3.242 × 8 =
  4. 4.211 × 7 =
  5. 5.905 × 6 =
  6. 6.575 × 8 =
  7. 7.261 × 8 =
  8. 8.208 × 5 =
  9. 9.424 × 7 =
  10. 10.267 × 4 =
  11. 11.389 × 6 =
  12. 12.171 × 3 =
  13. 13.145 × 3 =
  14. 14.118 × 4 =
  15. 15.187 × 8 =
  16. 16.597 × 9 =
  17. 17.913 × 3 =
  18. 18.928 × 4 =
  19. 19.892 × 8 =
  20. 20.117 × 3 =
  21. 21.345 × 7 =
  22. 22.123 × 3 =
  23. 23.301 × 3 =
  24. 24.918 × 4 =
  25. 25.782 × 5 =
  26. 26.673 × 7 =
  27. 27.475 × 9 =
  28. 28.488 × 3 =
  29. 29.441 × 3 =
  30. 30.651 × 6 =
  31. 31.904 × 8 =
  32. 32.767 × 4 =
  33. 33.927 × 6 =
  34. 34.233 × 9 =
  35. 35.443 × 3 =
  36. 36.489 × 8 =
  37. 37.305 × 6 =
  38. 38.906 × 3 =
  39. 39.427 × 4 =
  40. 40.556 × 3 =

Answer key

  1. 1704
  2. 2037
  3. 1936
  4. 1477
  5. 5430
  6. 4600
  7. 2088
  8. 1040
  9. 2968
  10. 1068
  11. 2334
  12. 513
  13. 435
  14. 472
  15. 1496
  16. 5373
  17. 2739
  18. 3712
  19. 7136
  20. 351
  21. 2415
  22. 369
  23. 903
  24. 3672
  25. 3910
  26. 4711
  27. 4275
  28. 1464
  29. 1323
  30. 3906
  31. 7232
  32. 3068
  33. 5562
  34. 2097
  35. 1329
  36. 3912
  37. 1830
  38. 2718
  39. 1708
  40. 1668

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