To solve problems involving adding and subtracting fractions, the document outlines a 4-step process: 1) understand the problem, 2) plan how to solve it, 3) carry out the solution, and 4) check the work. It also provides keywords to help with problems involving addition like "sum" and "plus" or subtraction like "difference" and "subtract".

1. To solve the problem involving addition
and subtraction of fractions, do the following
steps:
Understand
Plan
Solve
Check
Remember:

2. MATH PROBLEM
SOLVING KEYWORDS
ADDITION
♥ sum ♥ in all ♥ and
♥ plus
♥ more ♥ all together ♥ Perimeter ♥
added to
♥ increased by ♥ total ♥ combine

3. SUBTRACTION
♥difference ♥ take away ♥ remain ♥
remaining
♥ fewer ♥ subtract ♥ left, left over ♥ exceed
♥ minus ♥ reduce by ♥ how many more
♥ farther
♥ dropped ♥ decreased by ♥ less than ♥
than
MATH PROBLEM
SOLVING KEYWORDS