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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 528 · 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. 1.171 × 5 =
  2. 2.483 × 7 =
  3. 3.127 × 9 =
  4. 4.616 × 7 =
  5. 5.236 × 9 =
  6. 6.881 × 5 =
  7. 7.601 × 3 =
  8. 8.191 × 5 =
  9. 9.438 × 8 =
  10. 10.549 × 4 =
  11. 11.701 × 7 =
  12. 12.136 × 5 =
  13. 13.179 × 6 =
  14. 14.234 × 3 =
  15. 15.326 × 3 =
  16. 16.274 × 8 =
  17. 17.482 × 5 =
  18. 18.381 × 4 =
  19. 19.284 × 9 =
  20. 20.522 × 3 =
  21. 21.945 × 5 =
  22. 22.221 × 3 =
  23. 23.519 × 6 =
  24. 24.599 × 5 =
  25. 25.658 × 5 =
  26. 26.526 × 4 =
  27. 27.129 × 7 =
  28. 28.362 × 3 =
  29. 29.437 × 3 =
  30. 30.319 × 5 =
  31. 31.354 × 9 =
  32. 32.613 × 6 =
  33. 33.828 × 5 =
  34. 34.932 × 3 =
  35. 35.559 × 9 =
  36. 36.865 × 8 =
  37. 37.143 × 9 =
  38. 38.772 × 6 =
  39. 39.948 × 6 =
  40. 40.119 × 8 =

Answer key

  1. 855
  2. 3381
  3. 1143
  4. 4312
  5. 2124
  6. 4405
  7. 1803
  8. 955
  9. 3504
  10. 2196
  11. 4907
  12. 680
  13. 1074
  14. 702
  15. 978
  16. 2192
  17. 2410
  18. 1524
  19. 2556
  20. 1566
  21. 4725
  22. 663
  23. 3114
  24. 2995
  25. 3290
  26. 2104
  27. 903
  28. 1086
  29. 1311
  30. 1595
  31. 3186
  32. 3678
  33. 4140
  34. 2796
  35. 5031
  36. 6920
  37. 1287
  38. 4632
  39. 5688
  40. 952

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