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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 957 · 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. 1.725 × 6 =
  2. 2.334 × 9 =
  3. 3.138 × 9 =
  4. 4.329 × 3 =
  5. 5.211 × 3 =
  6. 6.431 × 6 =
  7. 7.621 × 5 =
  8. 8.551 × 6 =
  9. 9.577 × 6 =
  10. 10.893 × 3 =
  11. 11.607 × 5 =
  12. 12.916 × 8 =
  13. 13.219 × 5 =
  14. 14.251 × 7 =
  15. 15.974 × 9 =
  16. 16.421 × 5 =
  17. 17.148 × 3 =
  18. 18.339 × 8 =
  19. 19.544 × 4 =
  20. 20.968 × 4 =
  21. 21.237 × 5 =
  22. 22.772 × 9 =
  23. 23.702 × 6 =
  24. 24.517 × 6 =
  25. 25.274 × 7 =
  26. 26.526 × 3 =
  27. 27.323 × 4 =
  28. 28.436 × 6 =
  29. 29.603 × 4 =
  30. 30.166 × 6 =
  31. 31.436 × 7 =
  32. 32.715 × 5 =
  33. 33.793 × 8 =
  34. 34.294 × 3 =
  35. 35.945 × 8 =
  36. 36.409 × 7 =
  37. 37.824 × 7 =
  38. 38.181 × 9 =
  39. 39.772 × 5 =
  40. 40.429 × 3 =

Answer key

  1. 4350
  2. 3006
  3. 1242
  4. 987
  5. 633
  6. 2586
  7. 3105
  8. 3306
  9. 3462
  10. 2679
  11. 3035
  12. 7328
  13. 1095
  14. 1757
  15. 8766
  16. 2105
  17. 444
  18. 2712
  19. 2176
  20. 3872
  21. 1185
  22. 6948
  23. 4212
  24. 3102
  25. 1918
  26. 1578
  27. 1292
  28. 2616
  29. 2412
  30. 996
  31. 3052
  32. 3575
  33. 6344
  34. 882
  35. 7560
  36. 2863
  37. 5768
  38. 1629
  39. 3860
  40. 1287

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