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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 196 · 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. 1.122 × 3 =
  2. 2.208 × 9 =
  3. 3.123 × 5 =
  4. 4.322 × 3 =
  5. 5.222 × 5 =
  6. 6.153 × 8 =
  7. 7.775 × 7 =
  8. 8.155 × 7 =
  9. 9.438 × 8 =
  10. 10.511 × 8 =
  11. 11.244 × 7 =
  12. 12.139 × 5 =
  13. 13.652 × 5 =
  14. 14.217 × 7 =
  15. 15.165 × 6 =
  16. 16.632 × 8 =
  17. 17.671 × 4 =
  18. 18.586 × 5 =
  19. 19.399 × 4 =
  20. 20.946 × 7 =
  21. 21.282 × 4 =
  22. 22.824 × 3 =
  23. 23.395 × 8 =
  24. 24.833 × 3 =
  25. 25.417 × 6 =
  26. 26.217 × 4 =
  27. 27.304 × 4 =
  28. 28.582 × 3 =
  29. 29.624 × 6 =
  30. 30.126 × 6 =
  31. 31.165 × 8 =
  32. 32.654 × 8 =
  33. 33.375 × 4 =
  34. 34.632 × 5 =
  35. 35.144 × 9 =
  36. 36.268 × 9 =
  37. 37.617 × 6 =
  38. 38.182 × 4 =
  39. 39.706 × 9 =
  40. 40.805 × 3 =

Answer key

  1. 366
  2. 1872
  3. 615
  4. 966
  5. 1110
  6. 1224
  7. 5425
  8. 1085
  9. 3504
  10. 4088
  11. 1708
  12. 695
  13. 3260
  14. 1519
  15. 990
  16. 5056
  17. 2684
  18. 2930
  19. 1596
  20. 6622
  21. 1128
  22. 2472
  23. 3160
  24. 2499
  25. 2502
  26. 868
  27. 1216
  28. 1746
  29. 3744
  30. 756
  31. 1320
  32. 5232
  33. 1500
  34. 3160
  35. 1296
  36. 2412
  37. 3702
  38. 728
  39. 6354
  40. 2415

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