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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 740 · 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. 1.199 × 3 =
  2. 2.585 × 6 =
  3. 3.281 × 4 =
  4. 4.292 × 4 =
  5. 5.392 × 3 =
  6. 6.338 × 3 =
  7. 7.157 × 6 =
  8. 8.959 × 5 =
  9. 9.976 × 5 =
  10. 10.635 × 7 =
  11. 11.654 × 5 =
  12. 12.195 × 5 =
  13. 13.404 × 3 =
  14. 14.128 × 6 =
  15. 15.272 × 8 =
  16. 16.149 × 8 =
  17. 17.741 × 3 =
  18. 18.541 × 5 =
  19. 19.459 × 9 =
  20. 20.459 × 3 =
  21. 21.165 × 9 =
  22. 22.156 × 8 =
  23. 23.942 × 5 =
  24. 24.864 × 7 =
  25. 25.752 × 8 =
  26. 26.531 × 8 =
  27. 27.385 × 5 =
  28. 28.451 × 5 =
  29. 29.312 × 9 =
  30. 30.166 × 3 =
  31. 31.969 × 5 =
  32. 32.699 × 4 =
  33. 33.584 × 8 =
  34. 34.296 × 8 =
  35. 35.793 × 4 =
  36. 36.808 × 9 =
  37. 37.529 × 3 =
  38. 38.857 × 4 =
  39. 39.231 × 4 =
  40. 40.454 × 7 =

Answer key

  1. 597
  2. 3510
  3. 1124
  4. 1168
  5. 1176
  6. 1014
  7. 942
  8. 4795
  9. 4880
  10. 4445
  11. 3270
  12. 975
  13. 1212
  14. 768
  15. 2176
  16. 1192
  17. 2223
  18. 2705
  19. 4131
  20. 1377
  21. 1485
  22. 1248
  23. 4710
  24. 6048
  25. 6016
  26. 4248
  27. 1925
  28. 2255
  29. 2808
  30. 498
  31. 4845
  32. 2796
  33. 4672
  34. 2368
  35. 3172
  36. 7272
  37. 1587
  38. 3428
  39. 924
  40. 3178

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