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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 590 · 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. 1.421 × 9 =
  2. 2.317 × 9 =
  3. 3.978 × 4 =
  4. 4.484 × 8 =
  5. 5.271 × 9 =
  6. 6.563 × 7 =
  7. 7.903 × 6 =
  8. 8.154 × 8 =
  9. 9.428 × 4 =
  10. 10.896 × 3 =
  11. 11.366 × 7 =
  12. 12.785 × 5 =
  13. 13.725 × 9 =
  14. 14.841 × 3 =
  15. 15.661 × 3 =
  16. 16.638 × 5 =
  17. 17.341 × 8 =
  18. 18.364 × 7 =
  19. 19.213 × 6 =
  20. 20.625 × 9 =
  21. 21.974 × 7 =
  22. 22.783 × 7 =
  23. 23.864 × 6 =
  24. 24.617 × 9 =
  25. 25.122 × 3 =
  26. 26.196 × 3 =
  27. 27.817 × 3 =
  28. 28.827 × 7 =
  29. 29.355 × 4 =
  30. 30.752 × 4 =
  31. 31.521 × 7 =
  32. 32.756 × 6 =
  33. 33.311 × 3 =
  34. 34.415 × 7 =
  35. 35.512 × 4 =
  36. 36.964 × 9 =
  37. 37.778 × 3 =
  38. 38.689 × 5 =
  39. 39.584 × 3 =
  40. 40.301 × 9 =

Answer key

  1. 3789
  2. 2853
  3. 3912
  4. 3872
  5. 2439
  6. 3941
  7. 5418
  8. 1232
  9. 1712
  10. 2688
  11. 2562
  12. 3925
  13. 6525
  14. 2523
  15. 1983
  16. 3190
  17. 2728
  18. 2548
  19. 1278
  20. 5625
  21. 6818
  22. 5481
  23. 5184
  24. 5553
  25. 366
  26. 588
  27. 2451
  28. 5789
  29. 1420
  30. 3008
  31. 3647
  32. 4536
  33. 933
  34. 2905
  35. 2048
  36. 8676
  37. 2334
  38. 3445
  39. 1752
  40. 2709

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