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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 755 · 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. 1.475 × 9 =
  2. 2.973 × 8 =
  3. 3.125 × 7 =
  4. 4.639 × 8 =
  5. 5.588 × 6 =
  6. 6.308 × 3 =
  7. 7.701 × 9 =
  8. 8.371 × 8 =
  9. 9.288 × 8 =
  10. 10.638 × 3 =
  11. 11.345 × 3 =
  12. 12.164 × 5 =
  13. 13.661 × 6 =
  14. 14.783 × 7 =
  15. 15.336 × 5 =
  16. 16.491 × 7 =
  17. 17.953 × 4 =
  18. 18.531 × 9 =
  19. 19.266 × 4 =
  20. 20.188 × 6 =
  21. 21.381 × 3 =
  22. 22.259 × 9 =
  23. 23.651 × 5 =
  24. 24.822 × 9 =
  25. 25.579 × 8 =
  26. 26.436 × 4 =
  27. 27.702 × 4 =
  28. 28.707 × 7 =
  29. 29.925 × 3 =
  30. 30.886 × 3 =
  31. 31.461 × 5 =
  32. 32.639 × 6 =
  33. 33.891 × 9 =
  34. 34.386 × 6 =
  35. 35.305 × 7 =
  36. 36.393 × 6 =
  37. 37.135 × 6 =
  38. 38.836 × 7 =
  39. 39.161 × 9 =
  40. 40.187 × 9 =

Answer key

  1. 4275
  2. 7784
  3. 875
  4. 5112
  5. 3528
  6. 924
  7. 6309
  8. 2968
  9. 2304
  10. 1914
  11. 1035
  12. 820
  13. 3966
  14. 5481
  15. 1680
  16. 3437
  17. 3812
  18. 4779
  19. 1064
  20. 1128
  21. 1143
  22. 2331
  23. 3255
  24. 7398
  25. 4632
  26. 1744
  27. 2808
  28. 4949
  29. 2775
  30. 2658
  31. 2305
  32. 3834
  33. 8019
  34. 2316
  35. 2135
  36. 2358
  37. 810
  38. 5852
  39. 1449
  40. 1683

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