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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 765 · 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. 1.561 × 6 =
  2. 2.305 × 5 =
  3. 3.801 × 4 =
  4. 4.908 × 5 =
  5. 5.466 × 9 =
  6. 6.688 × 7 =
  7. 7.462 × 7 =
  8. 8.805 × 7 =
  9. 9.231 × 4 =
  10. 10.601 × 6 =
  11. 11.505 × 7 =
  12. 12.807 × 9 =
  13. 13.389 × 9 =
  14. 14.864 × 3 =
  15. 15.174 × 3 =
  16. 16.505 × 4 =
  17. 17.457 × 5 =
  18. 18.201 × 6 =
  19. 19.407 × 4 =
  20. 20.306 × 3 =
  21. 21.124 × 8 =
  22. 22.113 × 7 =
  23. 23.175 × 8 =
  24. 24.914 × 3 =
  25. 25.706 × 6 =
  26. 26.661 × 4 =
  27. 27.321 × 5 =
  28. 28.475 × 9 =
  29. 29.794 × 7 =
  30. 30.181 × 7 =
  31. 31.564 × 4 =
  32. 32.885 × 6 =
  33. 33.293 × 4 =
  34. 34.781 × 7 =
  35. 35.121 × 9 =
  36. 36.387 × 4 =
  37. 37.837 × 4 =
  38. 38.783 × 3 =
  39. 39.377 × 3 =
  40. 40.594 × 5 =

Answer key

  1. 3366
  2. 1525
  3. 3204
  4. 4540
  5. 4194
  6. 4816
  7. 3234
  8. 5635
  9. 924
  10. 3606
  11. 3535
  12. 7263
  13. 3501
  14. 2592
  15. 522
  16. 2020
  17. 2285
  18. 1206
  19. 1628
  20. 918
  21. 992
  22. 791
  23. 1400
  24. 2742
  25. 4236
  26. 2644
  27. 1605
  28. 4275
  29. 5558
  30. 1267
  31. 2256
  32. 5310
  33. 1172
  34. 5467
  35. 1089
  36. 1548
  37. 3348
  38. 2349
  39. 1131
  40. 2970

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