Question

VERY URGANT AS WELL

Write an addition equation to model the following problem. Then solve the equation.
A textbook has 430 pages. There are18 pages in the index. How many pages of the textbook are not in the​ index?
Let p be the number of pages not in the index. What is an addition equation that models the​ problem?

Answer 1

430+18=448-430=418
430-418=48 pages are not in the index

Answer 2

430-18 not in index
p+18=430