## Guess and Check

Guessing and checking is helpful when a problem presents large numbers or many pieces of data. When problem solvers use this strategy, they guess the answer, test to see if it is correct, and make another guess if the previous one was incorrect.They gradually come closer and closer to a solution by making increasingly more reasonable guesses.

## Example Problem

450 people attended the concert. There were 90 fewer men that women at the assembly.

a. How many men were in attendance?

b. How many women were in attendance?

Make guesses to figure out the answer. Eventually you will find that there were 270 women and 180 men.

a. How many men were in attendance?

b. How many women were in attendance?

Make guesses to figure out the answer. Eventually you will find that there were 270 women and 180 men.