Question

Read the word problem. George has 2 times the amount of points that is 4 less than his sister’s. His sister has 16 points. How many points does George have? What operations are needed to solve this word problem, and in what order should they be used?
addition and subtraction, in that order
addition and multiplication, in that order
subtraction and division, in that order
subtraction and multiplication, in that order

Answer 1

For this case, the first thing we are going to do is define the following variables:
 x: Sister points.
 y: George's points.
 We write the following mathematical equation:
 y = 2 * (x-4)
 His sister has 16 points:
 y = 2 * (16-4)
 y = 2 * (12)
 y = 24

 Answer:

 How many points does George have?
 
 George has 24 points.

 What operations are needed to solve this word, and in what order should they be used?

 subtraction and multiplication, in that order