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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 543 · 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. 1.428 × 7 =
  2. 2.299 × 9 =
  3. 3.354 × 6 =
  4. 4.669 × 4 =
  5. 5.556 × 7 =
  6. 6.594 × 4 =
  7. 7.812 × 3 =
  8. 8.334 × 9 =
  9. 9.381 × 4 =
  10. 10.449 × 3 =
  11. 11.265 × 7 =
  12. 12.657 × 9 =
  13. 13.164 × 3 =
  14. 14.213 × 7 =
  15. 15.735 × 6 =
  16. 16.669 × 5 =
  17. 17.608 × 4 =
  18. 18.145 × 4 =
  19. 19.717 × 7 =
  20. 20.301 × 4 =
  21. 21.481 × 3 =
  22. 22.347 × 9 =
  23. 23.942 × 4 =
  24. 24.741 × 3 =
  25. 25.415 × 7 =
  26. 26.383 × 6 =
  27. 27.341 × 4 =
  28. 28.423 × 5 =
  29. 29.189 × 6 =
  30. 30.897 × 9 =
  31. 31.292 × 9 =
  32. 32.219 × 9 =
  33. 33.625 × 8 =
  34. 34.577 × 7 =
  35. 35.592 × 5 =
  36. 36.477 × 7 =
  37. 37.538 × 6 =
  38. 38.211 × 8 =
  39. 39.672 × 5 =
  40. 40.727 × 8 =

Answer key

  1. 2996
  2. 2691
  3. 2124
  4. 2676
  5. 3892
  6. 2376
  7. 2436
  8. 3006
  9. 1524
  10. 1347
  11. 1855
  12. 5913
  13. 492
  14. 1491
  15. 4410
  16. 3345
  17. 2432
  18. 580
  19. 5019
  20. 1204
  21. 1443
  22. 3123
  23. 3768
  24. 2223
  25. 2905
  26. 2298
  27. 1364
  28. 2115
  29. 1134
  30. 8073
  31. 2628
  32. 1971
  33. 5000
  34. 4039
  35. 2960
  36. 3339
  37. 3228
  38. 1688
  39. 3360
  40. 5816

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