California
Rule Out Extra Information
Rule out information that is not needed to solve the problem.
Some math problems have too much information. Smart test-takers decide which facts they need and which they don't. Let's try it with the problem below. Read it on your own. Then click the arrow, and we'll solve it together.
The school band has 42 boys and 27 girls. The chorus has 16 boys and 25 girls. How many more boys than girls are in the band?
