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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 950 · 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. 1.469 × 3 =
  2. 2.872 × 5 =
  3. 3.119 × 8 =
  4. 4.875 × 6 =
  5. 5.487 × 5 =
  6. 6.706 × 8 =
  7. 7.467 × 5 =
  8. 8.312 × 5 =
  9. 9.441 × 7 =
  10. 10.323 × 3 =
  11. 11.445 × 6 =
  12. 12.667 × 4 =
  13. 13.733 × 3 =
  14. 14.507 × 4 =
  15. 15.231 × 8 =
  16. 16.347 × 4 =
  17. 17.916 × 3 =
  18. 18.256 × 7 =
  19. 19.519 × 5 =
  20. 20.231 × 6 =
  21. 21.367 × 4 =
  22. 22.144 × 7 =
  23. 23.113 × 9 =
  24. 24.387 × 6 =
  25. 25.438 × 9 =
  26. 26.289 × 6 =
  27. 27.707 × 4 =
  28. 28.781 × 7 =
  29. 29.761 × 9 =
  30. 30.883 × 3 =
  31. 31.185 × 6 =
  32. 32.639 × 3 =
  33. 33.829 × 5 =
  34. 34.447 × 3 =
  35. 35.985 × 5 =
  36. 36.932 × 9 =
  37. 37.771 × 7 =
  38. 38.336 × 4 =
  39. 39.916 × 7 =
  40. 40.444 × 5 =

Answer key

  1. 1407
  2. 4360
  3. 952
  4. 5250
  5. 2435
  6. 5648
  7. 2335
  8. 1560
  9. 3087
  10. 969
  11. 2670
  12. 2668
  13. 2199
  14. 2028
  15. 1848
  16. 1388
  17. 2748
  18. 1792
  19. 2595
  20. 1386
  21. 1468
  22. 1008
  23. 1017
  24. 2322
  25. 3942
  26. 1734
  27. 2828
  28. 5467
  29. 6849
  30. 2649
  31. 1110
  32. 1917
  33. 4145
  34. 1341
  35. 4925
  36. 8388
  37. 5397
  38. 1344
  39. 6412
  40. 2220

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