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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 634 · 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. 1.663 × 5 =
  2. 2.378 × 3 =
  3. 3.814 × 7 =
  4. 4.898 × 6 =
  5. 5.651 × 6 =
  6. 6.934 × 9 =
  7. 7.629 × 7 =
  8. 8.494 × 8 =
  9. 9.887 × 9 =
  10. 10.602 × 9 =
  11. 11.391 × 7 =
  12. 12.141 × 9 =
  13. 13.134 × 8 =
  14. 14.893 × 3 =
  15. 15.677 × 5 =
  16. 16.181 × 6 =
  17. 17.553 × 6 =
  18. 18.686 × 4 =
  19. 19.176 × 6 =
  20. 20.493 × 4 =
  21. 21.375 × 4 =
  22. 22.531 × 7 =
  23. 23.625 × 4 =
  24. 24.979 × 8 =
  25. 25.188 × 5 =
  26. 26.556 × 5 =
  27. 27.775 × 3 =
  28. 28.405 × 6 =
  29. 29.905 × 5 =
  30. 30.256 × 7 =
  31. 31.321 × 4 =
  32. 32.975 × 6 =
  33. 33.283 × 8 =
  34. 34.604 × 3 =
  35. 35.347 × 7 =
  36. 36.792 × 7 =
  37. 37.444 × 6 =
  38. 38.431 × 6 =
  39. 39.595 × 8 =
  40. 40.122 × 3 =

Answer key

  1. 3315
  2. 1134
  3. 5698
  4. 5388
  5. 3906
  6. 8406
  7. 4403
  8. 3952
  9. 7983
  10. 5418
  11. 2737
  12. 1269
  13. 1072
  14. 2679
  15. 3385
  16. 1086
  17. 3318
  18. 2744
  19. 1056
  20. 1972
  21. 1500
  22. 3717
  23. 2500
  24. 7832
  25. 940
  26. 2780
  27. 2325
  28. 2430
  29. 4525
  30. 1792
  31. 1284
  32. 5850
  33. 2264
  34. 1812
  35. 2429
  36. 5544
  37. 2664
  38. 2586
  39. 4760
  40. 366

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