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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 941 · 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. 1.521 × 6 =
  2. 2.133 × 9 =
  3. 3.751 × 7 =
  4. 4.112 × 5 =
  5. 5.756 × 6 =
  6. 6.246 × 5 =
  7. 7.218 × 9 =
  8. 8.501 × 3 =
  9. 9.711 × 4 =
  10. 10.224 × 3 =
  11. 11.576 × 8 =
  12. 12.497 × 7 =
  13. 13.561 × 6 =
  14. 14.233 × 9 =
  15. 15.521 × 8 =
  16. 16.879 × 4 =
  17. 17.989 × 8 =
  18. 18.462 × 3 =
  19. 19.821 × 3 =
  20. 20.229 × 8 =
  21. 21.161 × 5 =
  22. 22.407 × 7 =
  23. 23.419 × 5 =
  24. 24.575 × 8 =
  25. 25.807 × 8 =
  26. 26.317 × 3 =
  27. 27.154 × 6 =
  28. 28.501 × 9 =
  29. 29.122 × 4 =
  30. 30.348 × 8 =
  31. 31.182 × 6 =
  32. 32.532 × 3 =
  33. 33.687 × 6 =
  34. 34.845 × 6 =
  35. 35.131 × 6 =
  36. 36.333 × 5 =
  37. 37.313 × 7 =
  38. 38.426 × 6 =
  39. 39.741 × 6 =
  40. 40.122 × 9 =

Answer key

  1. 3126
  2. 1197
  3. 5257
  4. 560
  5. 4536
  6. 1230
  7. 1962
  8. 1503
  9. 2844
  10. 672
  11. 4608
  12. 3479
  13. 3366
  14. 2097
  15. 4168
  16. 3516
  17. 7912
  18. 1386
  19. 2463
  20. 1832
  21. 805
  22. 2849
  23. 2095
  24. 4600
  25. 6456
  26. 951
  27. 924
  28. 4509
  29. 488
  30. 2784
  31. 1092
  32. 1596
  33. 4122
  34. 5070
  35. 786
  36. 1665
  37. 2191
  38. 2556
  39. 4446
  40. 1098

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