Question

In a library, there are 12 books in each of the 4 shelves of a rack, but Jamie takesaway 3 books from each of the two shelves. How many books are there now? If thenumber of remaining books is 'X', choose the equation that fits the story.a) (12 x 4) + (3 x 2) = Xb) (12 x 3) - (4 x 2) = XC) (12 x 4) - (3 x 2) = Xd) (12 x 2) - (3 x 4) = X

Answer 1

We know that

• There are 12 books in each of the 4 shelves of a rack.

,

• Jamie takes away 3 books from each of the two shelves.

First, we multiply to know the total number of books there are

`12*4`

This product represents the total number of books.

Additionally, Jamie takes away 3 books from two shelves, that means we have to subtract the following product

`3*2`

Therefore, the expression that models this situation is

`(12*4)-(3*2)=x`