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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 72 · 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. 1.933 × 5 =
  2. 2.984 × 5 =
  3. 3.718 × 7 =
  4. 4.285 × 7 =
  5. 5.938 × 9 =
  6. 6.312 × 7 =
  7. 7.716 × 9 =
  8. 8.356 × 9 =
  9. 9.898 × 7 =
  10. 10.179 × 6 =
  11. 11.723 × 3 =
  12. 12.834 × 4 =
  13. 13.963 × 4 =
  14. 14.116 × 3 =
  15. 15.367 × 9 =
  16. 16.371 × 7 =
  17. 17.553 × 8 =
  18. 18.527 × 7 =
  19. 19.179 × 4 =
  20. 20.954 × 3 =
  21. 21.343 × 4 =
  22. 22.981 × 6 =
  23. 23.251 × 9 =
  24. 24.705 × 4 =
  25. 25.955 × 3 =
  26. 26.709 × 6 =
  27. 27.766 × 4 =
  28. 28.439 × 3 =
  29. 29.221 × 3 =
  30. 30.475 × 5 =
  31. 31.158 × 9 =
  32. 32.457 × 6 =
  33. 33.816 × 5 =
  34. 34.609 × 6 =
  35. 35.208 × 9 =
  36. 36.211 × 6 =
  37. 37.907 × 5 =
  38. 38.772 × 3 =
  39. 39.451 × 4 =
  40. 40.253 × 8 =

Answer key

  1. 4665
  2. 4920
  3. 5026
  4. 1995
  5. 8442
  6. 2184
  7. 6444
  8. 3204
  9. 6286
  10. 1074
  11. 2169
  12. 3336
  13. 3852
  14. 348
  15. 3303
  16. 2597
  17. 4424
  18. 3689
  19. 716
  20. 2862
  21. 1372
  22. 5886
  23. 2259
  24. 2820
  25. 2865
  26. 4254
  27. 3064
  28. 1317
  29. 663
  30. 2375
  31. 1422
  32. 2742
  33. 4080
  34. 3654
  35. 1872
  36. 1266
  37. 4535
  38. 2316
  39. 1804
  40. 2024

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