A little girl is numbering her collection of butterflies by placing single-digit stickers under each specimen. If the girl has 330 butterflies, how many stickers does she need? (The numbers are consecutive and the number of the first butterfly is 1).  Answers.
A) 882 B) 901 C) 1,001 D) 1,003 E) 1,346
For the first 9 butterflies we need 9 stickers.   For the next 90 we need 2 stickers each or 180 stickers.   For the next 900 butterflies we need 3 stickers each.   The first 99 butterflies correspond to 189 stickers.   Subtract 99 from the total number of butterflies (330).   This leaves 231 butterflies that use 3 stickers each. So, multiply 231 by 3 to get 693.   Add 693 to 189 stickers to get 882 stickers.   882nswer: 882
<result>A</result>
A little girl is numbering her collection of butterflies by placing single-digit stickers under each specimen. If the girl has 330 butterflies, how many stickers does she need? (The numbers are consecutive and the number of the first butterfly is 1).