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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 122 · 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. 1.628 × 4 =
  2. 2.287 × 6 =
  3. 3.523 × 6 =
  4. 4.122 × 8 =
  5. 5.669 × 5 =
  6. 6.175 × 3 =
  7. 7.178 × 7 =
  8. 8.221 × 7 =
  9. 9.261 × 5 =
  10. 10.295 × 9 =
  11. 11.499 × 9 =
  12. 12.675 × 4 =
  13. 13.352 × 6 =
  14. 14.849 × 8 =
  15. 15.936 × 7 =
  16. 16.119 × 4 =
  17. 17.705 × 6 =
  18. 18.503 × 8 =
  19. 19.941 × 4 =
  20. 20.531 × 3 =
  21. 21.917 × 7 =
  22. 22.672 × 8 =
  23. 23.361 × 9 =
  24. 24.336 × 8 =
  25. 25.354 × 8 =
  26. 26.577 × 4 =
  27. 27.322 × 3 =
  28. 28.938 × 4 =
  29. 29.135 × 5 =
  30. 30.968 × 7 =
  31. 31.372 × 5 =
  32. 32.235 × 8 =
  33. 33.468 × 5 =
  34. 34.972 × 9 =
  35. 35.729 × 6 =
  36. 36.383 × 3 =
  37. 37.151 × 5 =
  38. 38.215 × 4 =
  39. 39.371 × 4 =
  40. 40.982 × 9 =

Answer key

  1. 2512
  2. 1722
  3. 3138
  4. 976
  5. 3345
  6. 525
  7. 1246
  8. 1547
  9. 1305
  10. 2655
  11. 4491
  12. 2700
  13. 2112
  14. 6792
  15. 6552
  16. 476
  17. 4230
  18. 4024
  19. 3764
  20. 1593
  21. 6419
  22. 5376
  23. 3249
  24. 2688
  25. 2832
  26. 2308
  27. 966
  28. 3752
  29. 675
  30. 6776
  31. 1860
  32. 1880
  33. 2340
  34. 8748
  35. 4374
  36. 1149
  37. 755
  38. 860
  39. 1484
  40. 8838

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