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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 636 · 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. 1.146 × 3 =
  2. 2.513 × 6 =
  3. 3.921 × 9 =
  4. 4.242 × 6 =
  5. 5.916 × 5 =
  6. 6.287 × 4 =
  7. 7.441 × 8 =
  8. 8.856 × 7 =
  9. 9.605 × 4 =
  10. 10.518 × 8 =
  11. 11.837 × 9 =
  12. 12.174 × 9 =
  13. 13.384 × 8 =
  14. 14.239 × 7 =
  15. 15.901 × 9 =
  16. 16.782 × 3 =
  17. 17.686 × 5 =
  18. 18.157 × 3 =
  19. 19.568 × 6 =
  20. 20.818 × 8 =
  21. 21.968 × 3 =
  22. 22.575 × 7 =
  23. 23.594 × 4 =
  24. 24.256 × 3 =
  25. 25.581 × 4 =
  26. 26.634 × 8 =
  27. 27.117 × 7 =
  28. 28.423 × 9 =
  29. 29.273 × 9 =
  30. 30.639 × 5 =
  31. 31.777 × 9 =
  32. 32.462 × 4 =
  33. 33.746 × 5 =
  34. 34.507 × 3 =
  35. 35.859 × 3 =
  36. 36.865 × 8 =
  37. 37.121 × 9 =
  38. 38.608 × 5 =
  39. 39.658 × 4 =
  40. 40.141 × 7 =

Answer key

  1. 438
  2. 3078
  3. 8289
  4. 1452
  5. 4580
  6. 1148
  7. 3528
  8. 5992
  9. 2420
  10. 4144
  11. 7533
  12. 1566
  13. 3072
  14. 1673
  15. 8109
  16. 2346
  17. 3430
  18. 471
  19. 3408
  20. 6544
  21. 2904
  22. 4025
  23. 2376
  24. 768
  25. 2324
  26. 5072
  27. 819
  28. 3807
  29. 2457
  30. 3195
  31. 6993
  32. 1848
  33. 3730
  34. 1521
  35. 2577
  36. 6920
  37. 1089
  38. 3040
  39. 2632
  40. 987

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