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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 174 · 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. 1.392 × 7 =
  2. 2.688 × 6 =
  3. 3.286 × 7 =
  4. 4.891 × 9 =
  5. 5.391 × 4 =
  6. 6.394 × 5 =
  7. 7.883 × 5 =
  8. 8.332 × 7 =
  9. 9.387 × 9 =
  10. 10.355 × 7 =
  11. 11.266 × 9 =
  12. 12.579 × 4 =
  13. 13.699 × 3 =
  14. 14.502 × 5 =
  15. 15.177 × 5 =
  16. 16.884 × 7 =
  17. 17.654 × 5 =
  18. 18.372 × 9 =
  19. 19.343 × 5 =
  20. 20.859 × 3 =
  21. 21.273 × 6 =
  22. 22.367 × 7 =
  23. 23.284 × 4 =
  24. 24.175 × 3 =
  25. 25.651 × 4 =
  26. 26.633 × 7 =
  27. 27.621 × 5 =
  28. 28.448 × 9 =
  29. 29.839 × 4 =
  30. 30.975 × 9 =
  31. 31.907 × 8 =
  32. 32.282 × 3 =
  33. 33.187 × 7 =
  34. 34.811 × 3 =
  35. 35.377 × 4 =
  36. 36.458 × 5 =
  37. 37.674 × 7 =
  38. 38.666 × 5 =
  39. 39.232 × 3 =
  40. 40.592 × 3 =

Answer key

  1. 2744
  2. 4128
  3. 2002
  4. 8019
  5. 1564
  6. 1970
  7. 4415
  8. 2324
  9. 3483
  10. 2485
  11. 2394
  12. 2316
  13. 2097
  14. 2510
  15. 885
  16. 6188
  17. 3270
  18. 3348
  19. 1715
  20. 2577
  21. 1638
  22. 2569
  23. 1136
  24. 525
  25. 2604
  26. 4431
  27. 3105
  28. 4032
  29. 3356
  30. 8775
  31. 7256
  32. 846
  33. 1309
  34. 2433
  35. 1508
  36. 2290
  37. 4718
  38. 3330
  39. 696
  40. 1776

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