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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 215 · 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. 1.943 × 7 =
  2. 2.528 × 9 =
  3. 3.489 × 3 =
  4. 4.841 × 5 =
  5. 5.203 × 8 =
  6. 6.388 × 3 =
  7. 7.272 × 5 =
  8. 8.261 × 7 =
  9. 9.214 × 7 =
  10. 10.652 × 7 =
  11. 11.223 × 6 =
  12. 12.195 × 6 =
  13. 13.345 × 7 =
  14. 14.618 × 4 =
  15. 15.659 × 5 =
  16. 16.333 × 7 =
  17. 17.562 × 4 =
  18. 18.726 × 9 =
  19. 19.171 × 5 =
  20. 20.156 × 7 =
  21. 21.372 × 8 =
  22. 22.574 × 6 =
  23. 23.459 × 7 =
  24. 24.415 × 8 =
  25. 25.149 × 5 =
  26. 26.283 × 7 =
  27. 27.884 × 6 =
  28. 28.891 × 3 =
  29. 29.584 × 5 =
  30. 30.798 × 6 =
  31. 31.318 × 7 =
  32. 32.203 × 5 =
  33. 33.117 × 6 =
  34. 34.669 × 5 =
  35. 35.659 × 9 =
  36. 36.602 × 8 =
  37. 37.112 × 4 =
  38. 38.467 × 9 =
  39. 39.402 × 4 =
  40. 40.956 × 3 =

Answer key

  1. 6601
  2. 4752
  3. 1467
  4. 4205
  5. 1624
  6. 1164
  7. 1360
  8. 1827
  9. 1498
  10. 4564
  11. 1338
  12. 1170
  13. 2415
  14. 2472
  15. 3295
  16. 2331
  17. 2248
  18. 6534
  19. 855
  20. 1092
  21. 2976
  22. 3444
  23. 3213
  24. 3320
  25. 745
  26. 1981
  27. 5304
  28. 2673
  29. 2920
  30. 4788
  31. 2226
  32. 1015
  33. 702
  34. 3345
  35. 5931
  36. 4816
  37. 448
  38. 4203
  39. 1608
  40. 2868

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