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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 751 · 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. 1.954 × 6 =
  2. 2.158 × 7 =
  3. 3.947 × 8 =
  4. 4.872 × 4 =
  5. 5.387 × 4 =
  6. 6.904 × 7 =
  7. 7.552 × 7 =
  8. 8.131 × 9 =
  9. 9.165 × 5 =
  10. 10.553 × 6 =
  11. 11.604 × 3 =
  12. 12.911 × 3 =
  13. 13.134 × 8 =
  14. 14.772 × 4 =
  15. 15.416 × 5 =
  16. 16.499 × 9 =
  17. 17.287 × 6 =
  18. 18.854 × 7 =
  19. 19.563 × 6 =
  20. 20.277 × 6 =
  21. 21.591 × 6 =
  22. 22.151 × 9 =
  23. 23.819 × 3 =
  24. 24.495 × 9 =
  25. 25.393 × 7 =
  26. 26.729 × 3 =
  27. 27.458 × 5 =
  28. 28.236 × 9 =
  29. 29.737 × 7 =
  30. 30.976 × 7 =
  31. 31.319 × 5 =
  32. 32.473 × 9 =
  33. 33.456 × 6 =
  34. 34.365 × 7 =
  35. 35.306 × 9 =
  36. 36.651 × 3 =
  37. 37.868 × 5 =
  38. 38.821 × 4 =
  39. 39.284 × 6 =
  40. 40.901 × 5 =

Answer key

  1. 5724
  2. 1106
  3. 7576
  4. 3488
  5. 1548
  6. 6328
  7. 3864
  8. 1179
  9. 825
  10. 3318
  11. 1812
  12. 2733
  13. 1072
  14. 3088
  15. 2080
  16. 4491
  17. 1722
  18. 5978
  19. 3378
  20. 1662
  21. 3546
  22. 1359
  23. 2457
  24. 4455
  25. 2751
  26. 2187
  27. 2290
  28. 2124
  29. 5159
  30. 6832
  31. 1595
  32. 4257
  33. 2736
  34. 2555
  35. 2754
  36. 1953
  37. 4340
  38. 3284
  39. 1704
  40. 4505

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