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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 178 · 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. 1.171 × 9 =
  2. 2.614 × 6 =
  3. 3.577 × 3 =
  4. 4.273 × 8 =
  5. 5.201 × 9 =
  6. 6.411 × 3 =
  7. 7.816 × 6 =
  8. 8.733 × 3 =
  9. 9.211 × 9 =
  10. 10.304 × 6 =
  11. 11.523 × 5 =
  12. 12.765 × 3 =
  13. 13.614 × 7 =
  14. 14.858 × 8 =
  15. 15.113 × 6 =
  16. 16.779 × 6 =
  17. 17.209 × 7 =
  18. 18.617 × 3 =
  19. 19.188 × 8 =
  20. 20.384 × 7 =
  21. 21.967 × 8 =
  22. 22.625 × 7 =
  23. 23.787 × 5 =
  24. 24.242 × 7 =
  25. 25.568 × 6 =
  26. 26.926 × 7 =
  27. 27.408 × 3 =
  28. 28.226 × 7 =
  29. 29.191 × 3 =
  30. 30.968 × 7 =
  31. 31.755 × 5 =
  32. 32.316 × 9 =
  33. 33.649 × 8 =
  34. 34.557 × 7 =
  35. 35.369 × 4 =
  36. 36.275 × 3 =
  37. 37.138 × 8 =
  38. 38.664 × 3 =
  39. 39.733 × 6 =
  40. 40.351 × 4 =

Answer key

  1. 1539
  2. 3684
  3. 1731
  4. 2184
  5. 1809
  6. 1233
  7. 4896
  8. 2199
  9. 1899
  10. 1824
  11. 2615
  12. 2295
  13. 4298
  14. 6864
  15. 678
  16. 4674
  17. 1463
  18. 1851
  19. 1504
  20. 2688
  21. 7736
  22. 4375
  23. 3935
  24. 1694
  25. 3408
  26. 6482
  27. 1224
  28. 1582
  29. 573
  30. 6776
  31. 3775
  32. 2844
  33. 5192
  34. 3899
  35. 1476
  36. 825
  37. 1104
  38. 1992
  39. 4398
  40. 1404

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