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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 8 · 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. 1.331 × 4 =
  2. 2.195 × 6 =
  3. 3.746 × 4 =
  4. 4.899 × 4 =
  5. 5.358 × 3 =
  6. 6.458 × 6 =
  7. 7.159 × 6 =
  8. 8.961 × 7 =
  9. 9.449 × 4 =
  10. 10.759 × 8 =
  11. 11.411 × 3 =
  12. 12.281 × 4 =
  13. 13.828 × 7 =
  14. 14.356 × 8 =
  15. 15.119 × 5 =
  16. 16.707 × 6 =
  17. 17.844 × 3 =
  18. 18.276 × 4 =
  19. 19.421 × 3 =
  20. 20.157 × 7 =
  21. 21.806 × 8 =
  22. 22.476 × 8 =
  23. 23.621 × 4 =
  24. 24.882 × 6 =
  25. 25.133 × 5 =
  26. 26.174 × 4 =
  27. 27.749 × 3 =
  28. 28.737 × 4 =
  29. 29.306 × 5 =
  30. 30.865 × 4 =
  31. 31.572 × 9 =
  32. 32.251 × 4 =
  33. 33.553 × 3 =
  34. 34.907 × 6 =
  35. 35.308 × 9 =
  36. 36.701 × 9 =
  37. 37.521 × 8 =
  38. 38.789 × 8 =
  39. 39.879 × 7 =
  40. 40.618 × 3 =

Answer key

  1. 1324
  2. 1170
  3. 2984
  4. 3596
  5. 1074
  6. 2748
  7. 954
  8. 6727
  9. 1796
  10. 6072
  11. 1233
  12. 1124
  13. 5796
  14. 2848
  15. 595
  16. 4242
  17. 2532
  18. 1104
  19. 1263
  20. 1099
  21. 6448
  22. 3808
  23. 2484
  24. 5292
  25. 665
  26. 696
  27. 2247
  28. 2948
  29. 1530
  30. 3460
  31. 5148
  32. 1004
  33. 1659
  34. 5442
  35. 2772
  36. 6309
  37. 4168
  38. 6312
  39. 6153
  40. 1854

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