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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 261 · 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. 1.551 × 5 =
  2. 2.226 × 7 =
  3. 3.448 × 8 =
  4. 4.824 × 3 =
  5. 5.118 × 3 =
  6. 6.308 × 7 =
  7. 7.956 × 9 =
  8. 8.514 × 9 =
  9. 9.885 × 5 =
  10. 10.293 × 5 =
  11. 11.161 × 4 =
  12. 12.358 × 7 =
  13. 13.706 × 6 =
  14. 14.189 × 9 =
  15. 15.754 × 3 =
  16. 16.477 × 7 =
  17. 17.662 × 3 =
  18. 18.164 × 5 =
  19. 19.768 × 8 =
  20. 20.426 × 4 =
  21. 21.956 × 7 =
  22. 22.547 × 7 =
  23. 23.185 × 6 =
  24. 24.557 × 7 =
  25. 25.315 × 5 =
  26. 26.179 × 4 =
  27. 27.988 × 4 =
  28. 28.962 × 9 =
  29. 29.452 × 3 =
  30. 30.261 × 9 =
  31. 31.673 × 8 =
  32. 32.342 × 4 =
  33. 33.292 × 6 =
  34. 34.761 × 7 =
  35. 35.884 × 7 =
  36. 36.475 × 5 =
  37. 37.534 × 4 =
  38. 38.767 × 6 =
  39. 39.958 × 7 =
  40. 40.541 × 6 =

Answer key

  1. 2755
  2. 1582
  3. 3584
  4. 2472
  5. 354
  6. 2156
  7. 8604
  8. 4626
  9. 4425
  10. 1465
  11. 644
  12. 2506
  13. 4236
  14. 1701
  15. 2262
  16. 3339
  17. 1986
  18. 820
  19. 6144
  20. 1704
  21. 6692
  22. 3829
  23. 1110
  24. 3899
  25. 1575
  26. 716
  27. 3952
  28. 8658
  29. 1356
  30. 2349
  31. 5384
  32. 1368
  33. 1752
  34. 5327
  35. 6188
  36. 2375
  37. 2136
  38. 4602
  39. 6706
  40. 3246

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