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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 545 · 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. 1.295 × 5 =
  2. 2.741 × 3 =
  3. 3.969 × 6 =
  4. 4.754 × 7 =
  5. 5.327 × 7 =
  6. 6.396 × 3 =
  7. 7.265 × 8 =
  8. 8.976 × 6 =
  9. 9.141 × 8 =
  10. 10.246 × 3 =
  11. 11.271 × 9 =
  12. 12.222 × 4 =
  13. 13.783 × 8 =
  14. 14.166 × 7 =
  15. 15.203 × 5 =
  16. 16.971 × 6 =
  17. 17.351 × 5 =
  18. 18.284 × 5 =
  19. 19.179 × 6 =
  20. 20.857 × 6 =
  21. 21.982 × 6 =
  22. 22.457 × 4 =
  23. 23.523 × 6 =
  24. 24.511 × 5 =
  25. 25.331 × 7 =
  26. 26.144 × 3 =
  27. 27.957 × 8 =
  28. 28.151 × 6 =
  29. 29.171 × 4 =
  30. 30.644 × 7 =
  31. 31.379 × 3 =
  32. 32.243 × 7 =
  33. 33.621 × 9 =
  34. 34.807 × 5 =
  35. 35.744 × 3 =
  36. 36.315 × 7 =
  37. 37.615 × 3 =
  38. 38.126 × 9 =
  39. 39.345 × 7 =
  40. 40.721 × 5 =

Answer key

  1. 1475
  2. 2223
  3. 5814
  4. 5278
  5. 2289
  6. 1188
  7. 2120
  8. 5856
  9. 1128
  10. 738
  11. 2439
  12. 888
  13. 6264
  14. 1162
  15. 1015
  16. 5826
  17. 1755
  18. 1420
  19. 1074
  20. 5142
  21. 5892
  22. 1828
  23. 3138
  24. 2555
  25. 2317
  26. 432
  27. 7656
  28. 906
  29. 684
  30. 4508
  31. 1137
  32. 1701
  33. 5589
  34. 4035
  35. 2232
  36. 2205
  37. 1845
  38. 1134
  39. 2415
  40. 3605

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