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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 665 · 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. 1.121 × 4 =
  2. 2.987 × 7 =
  3. 3.919 × 6 =
  4. 4.483 × 3 =
  5. 5.438 × 3 =
  6. 6.864 × 8 =
  7. 7.277 × 8 =
  8. 8.196 × 4 =
  9. 9.326 × 7 =
  10. 10.279 × 4 =
  11. 11.422 × 3 =
  12. 12.817 × 4 =
  13. 13.324 × 5 =
  14. 14.496 × 9 =
  15. 15.343 × 7 =
  16. 16.852 × 3 =
  17. 17.525 × 9 =
  18. 18.123 × 9 =
  19. 19.739 × 5 =
  20. 20.245 × 3 =
  21. 21.612 × 7 =
  22. 22.148 × 9 =
  23. 23.377 × 7 =
  24. 24.947 × 8 =
  25. 25.741 × 5 =
  26. 26.352 × 8 =
  27. 27.283 × 7 =
  28. 28.361 × 7 =
  29. 29.853 × 8 =
  30. 30.556 × 7 =
  31. 31.156 × 5 =
  32. 32.666 × 6 =
  33. 33.552 × 7 =
  34. 34.442 × 9 =
  35. 35.782 × 4 =
  36. 36.979 × 7 =
  37. 37.127 × 8 =
  38. 38.368 × 9 =
  39. 39.883 × 3 =
  40. 40.286 × 3 =

Answer key

  1. 484
  2. 6909
  3. 5514
  4. 1449
  5. 1314
  6. 6912
  7. 2216
  8. 784
  9. 2282
  10. 1116
  11. 1266
  12. 3268
  13. 1620
  14. 4464
  15. 2401
  16. 2556
  17. 4725
  18. 1107
  19. 3695
  20. 735
  21. 4284
  22. 1332
  23. 2639
  24. 7576
  25. 3705
  26. 2816
  27. 1981
  28. 2527
  29. 6824
  30. 3892
  31. 780
  32. 3996
  33. 3864
  34. 3978
  35. 3128
  36. 6853
  37. 1016
  38. 3312
  39. 2649
  40. 858

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