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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 2 · 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. 1.838 × 7 =
  2. 2.333 × 8 =
  3. 3.151 × 7 =
  4. 4.153 × 7 =
  5. 5.941 × 5 =
  6. 6.171 × 3 =
  7. 7.853 × 6 =
  8. 8.141 × 7 =
  9. 9.772 × 8 =
  10. 10.763 × 5 =
  11. 11.363 × 5 =
  12. 12.831 × 6 =
  13. 13.944 × 3 =
  14. 14.241 × 3 =
  15. 15.305 × 4 =
  16. 16.847 × 6 =
  17. 17.282 × 9 =
  18. 18.241 × 4 =
  19. 19.531 × 7 =
  20. 20.401 × 4 =
  21. 21.961 × 6 =
  22. 22.305 × 7 =
  23. 23.449 × 6 =
  24. 24.337 × 3 =
  25. 25.625 × 4 =
  26. 26.678 × 6 =
  27. 27.857 × 9 =
  28. 28.176 × 7 =
  29. 29.269 × 5 =
  30. 30.689 × 9 =
  31. 31.297 × 8 =
  32. 32.358 × 3 =
  33. 33.485 × 5 =
  34. 34.197 × 6 =
  35. 35.195 × 3 =
  36. 36.315 × 8 =
  37. 37.805 × 4 =
  38. 38.818 × 4 =
  39. 39.583 × 5 =
  40. 40.444 × 5 =

Answer key

  1. 5866
  2. 2664
  3. 1057
  4. 1071
  5. 4705
  6. 513
  7. 5118
  8. 987
  9. 6176
  10. 3815
  11. 1815
  12. 4986
  13. 2832
  14. 723
  15. 1220
  16. 5082
  17. 2538
  18. 964
  19. 3717
  20. 1604
  21. 5766
  22. 2135
  23. 2694
  24. 1011
  25. 2500
  26. 4068
  27. 7713
  28. 1232
  29. 1345
  30. 6201
  31. 2376
  32. 1074
  33. 2425
  34. 1182
  35. 585
  36. 2520
  37. 3220
  38. 3272
  39. 2915
  40. 2220

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