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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 313 · 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. 1.386 × 5 =
  2. 2.552 × 6 =
  3. 3.532 × 8 =
  4. 4.685 × 7 =
  5. 5.956 × 3 =
  6. 6.189 × 7 =
  7. 7.201 × 6 =
  8. 8.892 × 3 =
  9. 9.245 × 6 =
  10. 10.374 × 9 =
  11. 11.839 × 8 =
  12. 12.114 × 9 =
  13. 13.273 × 7 =
  14. 14.509 × 5 =
  15. 15.413 × 4 =
  16. 16.131 × 7 =
  17. 17.254 × 4 =
  18. 18.605 × 8 =
  19. 19.355 × 9 =
  20. 20.347 × 9 =
  21. 21.828 × 5 =
  22. 22.339 × 9 =
  23. 23.637 × 7 =
  24. 24.711 × 6 =
  25. 25.814 × 9 =
  26. 26.118 × 6 =
  27. 27.179 × 6 =
  28. 28.578 × 7 =
  29. 29.285 × 7 =
  30. 30.313 × 9 =
  31. 31.666 × 8 =
  32. 32.166 × 5 =
  33. 33.354 × 9 =
  34. 34.486 × 7 =
  35. 35.217 × 7 =
  36. 36.878 × 4 =
  37. 37.768 × 6 =
  38. 38.271 × 3 =
  39. 39.729 × 4 =
  40. 40.655 × 7 =

Answer key

  1. 1930
  2. 3312
  3. 4256
  4. 4795
  5. 2868
  6. 1323
  7. 1206
  8. 2676
  9. 1470
  10. 3366
  11. 6712
  12. 1026
  13. 1911
  14. 2545
  15. 1652
  16. 917
  17. 1016
  18. 4840
  19. 3195
  20. 3123
  21. 4140
  22. 3051
  23. 4459
  24. 4266
  25. 7326
  26. 708
  27. 1074
  28. 4046
  29. 1995
  30. 2817
  31. 5328
  32. 830
  33. 3186
  34. 3402
  35. 1519
  36. 3512
  37. 4608
  38. 813
  39. 2916
  40. 4585

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