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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 292 · 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. 1.493 × 7 =
  2. 2.869 × 7 =
  3. 3.231 × 3 =
  4. 4.237 × 7 =
  5. 5.411 × 8 =
  6. 6.446 × 9 =
  7. 7.385 × 3 =
  8. 8.601 × 5 =
  9. 9.371 × 8 =
  10. 10.205 × 3 =
  11. 11.907 × 9 =
  12. 12.246 × 7 =
  13. 13.485 × 4 =
  14. 14.563 × 5 =
  15. 15.205 × 4 =
  16. 16.192 × 4 =
  17. 17.241 × 3 =
  18. 18.772 × 4 =
  19. 19.847 × 5 =
  20. 20.921 × 7 =
  21. 21.374 × 3 =
  22. 22.681 × 9 =
  23. 23.191 × 8 =
  24. 24.629 × 4 =
  25. 25.804 × 5 =
  26. 26.217 × 4 =
  27. 27.721 × 3 =
  28. 28.212 × 5 =
  29. 29.329 × 5 =
  30. 30.784 × 4 =
  31. 31.877 × 3 =
  32. 32.349 × 3 =
  33. 33.399 × 9 =
  34. 34.805 × 5 =
  35. 35.671 × 4 =
  36. 36.565 × 4 =
  37. 37.979 × 9 =
  38. 38.964 × 8 =
  39. 39.244 × 5 =
  40. 40.961 × 9 =

Answer key

  1. 3451
  2. 6083
  3. 693
  4. 1659
  5. 3288
  6. 4014
  7. 1155
  8. 3005
  9. 2968
  10. 615
  11. 8163
  12. 1722
  13. 1940
  14. 2815
  15. 820
  16. 768
  17. 723
  18. 3088
  19. 4235
  20. 6447
  21. 1122
  22. 6129
  23. 1528
  24. 2516
  25. 4020
  26. 868
  27. 2163
  28. 1060
  29. 1645
  30. 3136
  31. 2631
  32. 1047
  33. 3591
  34. 4025
  35. 2684
  36. 2260
  37. 8811
  38. 7712
  39. 1220
  40. 8649

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