Which problem represents the separate,start unknown structure?
A)Maryann had 3 library books before she checked out 2 more.How many did she have all together?
B)Maryann had 5 library books before she returned 2 of them.How many does she have now?
C)Maryann had some nonfiction books and 2 fiction.She now has 8 books.How many did she begin with?
D)Maryann had 9 library books and Jim had 4.How many more did Maryann have than Jim?

Question

Quizplus · Accepted Answer

The separate, start unknown structure involves finding the starting number when given the result of adding or subtracting. In this case, we are given the result (8 books) and the number of fiction books (2), so we need to find the starting number of nonfiction books.

Which Problem Represents the Separate,start Unknown Structure