Eric's notebook has 30 pages he wants to write a number on each page how many digits will he right when he numbers all the pages

Question

ElenaW [278]

4 years ago

10

Eric's notebook has 30 pages he wants to write a number on each page how many digits will he right when he numbers all the pages

in the notebook

Mathematics

2 answers:

Vladimir79 [104] · Answer 1 · 2021-12-30T09:40:21+03:00

Vladimir79 [104]4 years ago

6 0

<span> 51 Because if there was two numbers for each page there would be 60 page numbers but there is pages 1-9 so you subtract 9 from 60 to get your answer.</span>

Mumz [18] · Answer 2 · 2021-12-30T10:54:59+03:00

Mumz [18]4 years ago

5 0

Pages 1-9 have 1 digit each
pages 10-30 have 2 digits each
so 9 pages have 1 and 21 pages have 2
9×1+21×2=9+42=51