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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 101 · 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. 1.356 × 5 =
  2. 2.321 × 6 =
  3. 3.567 × 4 =
  4. 4.123 × 6 =
  5. 5.262 × 3 =
  6. 6.371 × 4 =
  7. 7.783 × 7 =
  8. 8.483 × 3 =
  9. 9.197 × 7 =
  10. 10.146 × 9 =
  11. 11.705 × 5 =
  12. 12.284 × 4 =
  13. 13.543 × 6 =
  14. 14.921 × 7 =
  15. 15.432 × 7 =
  16. 16.853 × 8 =
  17. 17.319 × 4 =
  18. 18.183 × 6 =
  19. 19.314 × 3 =
  20. 20.943 × 9 =
  21. 21.489 × 4 =
  22. 22.728 × 4 =
  23. 23.749 × 7 =
  24. 24.161 × 6 =
  25. 25.511 × 3 =
  26. 26.711 × 3 =
  27. 27.538 × 5 =
  28. 28.771 × 4 =
  29. 29.341 × 6 =
  30. 30.231 × 4 =
  31. 31.199 × 3 =
  32. 32.723 × 3 =
  33. 33.723 × 4 =
  34. 34.393 × 9 =
  35. 35.117 × 4 =
  36. 36.447 × 7 =
  37. 37.524 × 6 =
  38. 38.445 × 8 =
  39. 39.332 × 9 =
  40. 40.646 × 9 =

Answer key

  1. 1780
  2. 1926
  3. 2268
  4. 738
  5. 786
  6. 1484
  7. 5481
  8. 1449
  9. 1379
  10. 1314
  11. 3525
  12. 1136
  13. 3258
  14. 6447
  15. 3024
  16. 6824
  17. 1276
  18. 1098
  19. 942
  20. 8487
  21. 1956
  22. 2912
  23. 5243
  24. 966
  25. 1533
  26. 2133
  27. 2690
  28. 3084
  29. 2046
  30. 924
  31. 597
  32. 2169
  33. 2892
  34. 3537
  35. 468
  36. 3129
  37. 3144
  38. 3560
  39. 2988
  40. 5814

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