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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 216 · 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. 1.717 × 4 =
  2. 2.338 × 5 =
  3. 3.365 × 3 =
  4. 4.301 × 3 =
  5. 5.924 × 6 =
  6. 6.152 × 8 =
  7. 7.647 × 8 =
  8. 8.793 × 4 =
  9. 9.919 × 6 =
  10. 10.242 × 9 =
  11. 11.539 × 7 =
  12. 12.181 × 4 =
  13. 13.355 × 4 =
  14. 14.119 × 5 =
  15. 15.159 × 4 =
  16. 16.192 × 6 =
  17. 17.779 × 8 =
  18. 18.365 × 7 =
  19. 19.788 × 4 =
  20. 20.436 × 9 =
  21. 21.354 × 9 =
  22. 22.712 × 4 =
  23. 23.753 × 8 =
  24. 24.651 × 5 =
  25. 25.639 × 5 =
  26. 26.271 × 7 =
  27. 27.245 × 7 =
  28. 28.216 × 3 =
  29. 29.173 × 9 =
  30. 30.266 × 5 =
  31. 31.834 × 9 =
  32. 32.659 × 5 =
  33. 33.171 × 4 =
  34. 34.705 × 8 =
  35. 35.529 × 5 =
  36. 36.653 × 9 =
  37. 37.383 × 9 =
  38. 38.371 × 3 =
  39. 39.606 × 8 =
  40. 40.439 × 4 =

Answer key

  1. 2868
  2. 1690
  3. 1095
  4. 903
  5. 5544
  6. 1216
  7. 5176
  8. 3172
  9. 5514
  10. 2178
  11. 3773
  12. 724
  13. 1420
  14. 595
  15. 636
  16. 1152
  17. 6232
  18. 2555
  19. 3152
  20. 3924
  21. 3186
  22. 2848
  23. 6024
  24. 3255
  25. 3195
  26. 1897
  27. 1715
  28. 648
  29. 1557
  30. 1330
  31. 7506
  32. 3295
  33. 684
  34. 5640
  35. 2645
  36. 5877
  37. 3447
  38. 1113
  39. 4848
  40. 1756

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