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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 251 · 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. 1.385 × 3 =
  2. 2.726 × 3 =
  3. 3.409 × 7 =
  4. 4.449 × 5 =
  5. 5.586 × 9 =
  6. 6.761 × 8 =
  7. 7.687 × 3 =
  8. 8.355 × 9 =
  9. 9.791 × 6 =
  10. 10.761 × 3 =
  11. 11.158 × 8 =
  12. 12.695 × 7 =
  13. 13.813 × 8 =
  14. 14.421 × 6 =
  15. 15.534 × 5 =
  16. 16.269 × 8 =
  17. 17.286 × 5 =
  18. 18.263 × 4 =
  19. 19.288 × 8 =
  20. 20.743 × 5 =
  21. 21.231 × 7 =
  22. 22.729 × 3 =
  23. 23.341 × 8 =
  24. 24.337 × 9 =
  25. 25.291 × 3 =
  26. 26.795 × 8 =
  27. 27.132 × 6 =
  28. 28.168 × 5 =
  29. 29.908 × 4 =
  30. 30.112 × 3 =
  31. 31.492 × 3 =
  32. 32.425 × 9 =
  33. 33.861 × 5 =
  34. 34.557 × 3 =
  35. 35.822 × 8 =
  36. 36.628 × 5 =
  37. 37.461 × 3 =
  38. 38.444 × 3 =
  39. 39.491 × 9 =
  40. 40.451 × 7 =

Answer key

  1. 1155
  2. 2178
  3. 2863
  4. 2245
  5. 5274
  6. 6088
  7. 2061
  8. 3195
  9. 4746
  10. 2283
  11. 1264
  12. 4865
  13. 6504
  14. 2526
  15. 2670
  16. 2152
  17. 1430
  18. 1052
  19. 2304
  20. 3715
  21. 1617
  22. 2187
  23. 2728
  24. 3033
  25. 873
  26. 6360
  27. 792
  28. 840
  29. 3632
  30. 336
  31. 1476
  32. 3825
  33. 4305
  34. 1671
  35. 6576
  36. 3140
  37. 1383
  38. 1332
  39. 4419
  40. 3157

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