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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 861 · 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. 1.901 × 7 =
  2. 2.907 × 7 =
  3. 3.921 × 3 =
  4. 4.388 × 3 =
  5. 5.666 × 8 =
  6. 6.117 × 4 =
  7. 7.235 × 3 =
  8. 8.936 × 6 =
  9. 9.904 × 6 =
  10. 10.441 × 4 =
  11. 11.954 × 7 =
  12. 12.241 × 9 =
  13. 13.175 × 6 =
  14. 14.947 × 6 =
  15. 15.651 × 9 =
  16. 16.583 × 4 =
  17. 17.763 × 6 =
  18. 18.409 × 6 =
  19. 19.244 × 5 =
  20. 20.211 × 8 =
  21. 21.425 × 7 =
  22. 22.889 × 3 =
  23. 23.353 × 8 =
  24. 24.874 × 4 =
  25. 25.605 × 4 =
  26. 26.963 × 4 =
  27. 27.199 × 7 =
  28. 28.641 × 8 =
  29. 29.644 × 7 =
  30. 30.748 × 3 =
  31. 31.549 × 7 =
  32. 32.371 × 8 =
  33. 33.227 × 9 =
  34. 34.755 × 3 =
  35. 35.987 × 6 =
  36. 36.485 × 9 =
  37. 37.491 × 4 =
  38. 38.156 × 8 =
  39. 39.549 × 4 =
  40. 40.404 × 7 =

Answer key

  1. 6307
  2. 6349
  3. 2763
  4. 1164
  5. 5328
  6. 468
  7. 705
  8. 5616
  9. 5424
  10. 1764
  11. 6678
  12. 2169
  13. 1050
  14. 5682
  15. 5859
  16. 2332
  17. 4578
  18. 2454
  19. 1220
  20. 1688
  21. 2975
  22. 2667
  23. 2824
  24. 3496
  25. 2420
  26. 3852
  27. 1393
  28. 5128
  29. 4508
  30. 2244
  31. 3843
  32. 2968
  33. 2043
  34. 2265
  35. 5922
  36. 4365
  37. 1964
  38. 1248
  39. 2196
  40. 2828

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