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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 783 · 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. 1.816 × 7 =
  2. 2.117 × 7 =
  3. 3.122 × 8 =
  4. 4.165 × 3 =
  5. 5.208 × 6 =
  6. 6.654 × 4 =
  7. 7.356 × 6 =
  8. 8.679 × 5 =
  9. 9.861 × 6 =
  10. 10.593 × 9 =
  11. 11.571 × 7 =
  12. 12.582 × 8 =
  13. 13.175 × 6 =
  14. 14.392 × 6 =
  15. 15.409 × 7 =
  16. 16.169 × 5 =
  17. 17.172 × 4 =
  18. 18.397 × 9 =
  19. 19.847 × 3 =
  20. 20.364 × 3 =
  21. 21.851 × 4 =
  22. 22.233 × 9 =
  23. 23.521 × 4 =
  24. 24.517 × 3 =
  25. 25.473 × 3 =
  26. 26.466 × 6 =
  27. 27.705 × 9 =
  28. 28.661 × 8 =
  29. 29.301 × 5 =
  30. 30.491 × 7 =
  31. 31.607 × 3 =
  32. 32.495 × 9 =
  33. 33.229 × 8 =
  34. 34.864 × 7 =
  35. 35.349 × 3 =
  36. 36.171 × 4 =
  37. 37.284 × 5 =
  38. 38.357 × 8 =
  39. 39.251 × 3 =
  40. 40.324 × 5 =

Answer key

  1. 5712
  2. 819
  3. 976
  4. 495
  5. 1248
  6. 2616
  7. 2136
  8. 3395
  9. 5166
  10. 5337
  11. 3997
  12. 4656
  13. 1050
  14. 2352
  15. 2863
  16. 845
  17. 688
  18. 3573
  19. 2541
  20. 1092
  21. 3404
  22. 2097
  23. 2084
  24. 1551
  25. 1419
  26. 2796
  27. 6345
  28. 5288
  29. 1505
  30. 3437
  31. 1821
  32. 4455
  33. 1832
  34. 6048
  35. 1047
  36. 684
  37. 1420
  38. 2856
  39. 753
  40. 1620

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