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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 357 · 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. 1.152 × 5 =
  2. 2.937 × 8 =
  3. 3.666 × 4 =
  4. 4.292 × 7 =
  5. 5.844 × 3 =
  6. 6.888 × 3 =
  7. 7.161 × 8 =
  8. 8.395 × 8 =
  9. 9.654 × 7 =
  10. 10.827 × 9 =
  11. 11.921 × 3 =
  12. 12.616 × 9 =
  13. 13.582 × 8 =
  14. 14.753 × 6 =
  15. 15.292 × 6 =
  16. 16.185 × 3 =
  17. 17.255 × 3 =
  18. 18.338 × 4 =
  19. 19.163 × 7 =
  20. 20.305 × 9 =
  21. 21.371 × 6 =
  22. 22.151 × 9 =
  23. 23.126 × 8 =
  24. 24.561 × 8 =
  25. 25.624 × 7 =
  26. 26.291 × 4 =
  27. 27.523 × 6 =
  28. 28.703 × 3 =
  29. 29.967 × 6 =
  30. 30.946 × 8 =
  31. 31.447 × 4 =
  32. 32.981 × 4 =
  33. 33.939 × 3 =
  34. 34.698 × 9 =
  35. 35.621 × 4 =
  36. 36.191 × 8 =
  37. 37.805 × 6 =
  38. 38.606 × 7 =
  39. 39.812 × 6 =
  40. 40.532 × 4 =

Answer key

  1. 760
  2. 7496
  3. 2664
  4. 2044
  5. 2532
  6. 2664
  7. 1288
  8. 3160
  9. 4578
  10. 7443
  11. 2763
  12. 5544
  13. 4656
  14. 4518
  15. 1752
  16. 555
  17. 765
  18. 1352
  19. 1141
  20. 2745
  21. 2226
  22. 1359
  23. 1008
  24. 4488
  25. 4368
  26. 1164
  27. 3138
  28. 2109
  29. 5802
  30. 7568
  31. 1788
  32. 3924
  33. 2817
  34. 6282
  35. 2484
  36. 1528
  37. 4830
  38. 4242
  39. 4872
  40. 2128

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