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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 607 · 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. 1.567 × 8 =
  2. 2.186 × 3 =
  3. 3.752 × 7 =
  4. 4.966 × 5 =
  5. 5.527 × 5 =
  6. 6.154 × 6 =
  7. 7.861 × 7 =
  8. 8.791 × 8 =
  9. 9.951 × 7 =
  10. 10.681 × 6 =
  11. 11.357 × 3 =
  12. 12.787 × 7 =
  13. 13.453 × 8 =
  14. 14.874 × 7 =
  15. 15.202 × 9 =
  16. 16.236 × 5 =
  17. 17.358 × 6 =
  18. 18.623 × 8 =
  19. 19.291 × 9 =
  20. 20.482 × 4 =
  21. 21.869 × 6 =
  22. 22.518 × 7 =
  23. 23.475 × 3 =
  24. 24.478 × 5 =
  25. 25.199 × 8 =
  26. 26.221 × 4 =
  27. 27.755 × 4 =
  28. 28.293 × 3 =
  29. 29.197 × 5 =
  30. 30.707 × 9 =
  31. 31.341 × 4 =
  32. 32.355 × 5 =
  33. 33.392 × 9 =
  34. 34.707 × 7 =
  35. 35.889 × 5 =
  36. 36.147 × 6 =
  37. 37.163 × 5 =
  38. 38.325 × 3 =
  39. 39.629 × 5 =
  40. 40.688 × 7 =

Answer key

  1. 4536
  2. 558
  3. 5264
  4. 4830
  5. 2635
  6. 924
  7. 6027
  8. 6328
  9. 6657
  10. 4086
  11. 1071
  12. 5509
  13. 3624
  14. 6118
  15. 1818
  16. 1180
  17. 2148
  18. 4984
  19. 2619
  20. 1928
  21. 5214
  22. 3626
  23. 1425
  24. 2390
  25. 1592
  26. 884
  27. 3020
  28. 879
  29. 985
  30. 6363
  31. 1364
  32. 1775
  33. 3528
  34. 4949
  35. 4445
  36. 882
  37. 815
  38. 975
  39. 3145
  40. 4816

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