Respuesta :
So first you take the number already read, in this case 573 books.
Next you take the goal, 900
Do the Goal minus the amount done:
900-573=327
Next you take the goal, 900
Do the Goal minus the amount done:
900-573=327
Answer:
327 books are needed to be read.
Step-by-step explanation:
Let the 3rd graders have to read the total number of books = x
Since they have read 573 books s far so number of books left to read = (x - 573)
If x = 900
then minimum number of books to be read by 3rd graders = 900 - 573
= 327 books
Therefore, 327 books are needed to be read.