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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 871 · 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. 1.139 × 7 =
  2. 2.801 × 3 =
  3. 3.151 × 3 =
  4. 4.456 × 5 =
  5. 5.929 × 5 =
  6. 6.231 × 8 =
  7. 7.501 × 6 =
  8. 8.391 × 8 =
  9. 9.726 × 5 =
  10. 10.483 × 3 =
  11. 11.609 × 3 =
  12. 12.773 × 3 =
  13. 13.449 × 7 =
  14. 14.664 × 3 =
  15. 15.688 × 7 =
  16. 16.373 × 9 =
  17. 17.725 × 4 =
  18. 18.519 × 4 =
  19. 19.627 × 4 =
  20. 20.681 × 5 =
  21. 21.412 × 8 =
  22. 22.322 × 9 =
  23. 23.567 × 3 =
  24. 24.778 × 7 =
  25. 25.123 × 8 =
  26. 26.833 × 6 =
  27. 27.195 × 4 =
  28. 28.333 × 4 =
  29. 29.261 × 3 =
  30. 30.771 × 9 =
  31. 31.808 × 4 =
  32. 32.608 × 9 =
  33. 33.594 × 7 =
  34. 34.351 × 8 =
  35. 35.353 × 9 =
  36. 36.571 × 5 =
  37. 37.326 × 5 =
  38. 38.288 × 9 =
  39. 39.236 × 8 =
  40. 40.549 × 8 =

Answer key

  1. 973
  2. 2403
  3. 453
  4. 2280
  5. 4645
  6. 1848
  7. 3006
  8. 3128
  9. 3630
  10. 1449
  11. 1827
  12. 2319
  13. 3143
  14. 1992
  15. 4816
  16. 3357
  17. 2900
  18. 2076
  19. 2508
  20. 3405
  21. 3296
  22. 2898
  23. 1701
  24. 5446
  25. 984
  26. 4998
  27. 780
  28. 1332
  29. 783
  30. 6939
  31. 3232
  32. 5472
  33. 4158
  34. 2808
  35. 3177
  36. 2855
  37. 1630
  38. 2592
  39. 1888
  40. 4392

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