File: Interactive Activinspire Flipchart
Grade Level: 5-6
How to solve for the percentage:
A. Using a Proportion
Set up a proportion that uses the percent over 100.
2. Cross multiply to write an equation.
3. Solve the equation.
To set up your proportion, think, "IS over OF equals PERCENT over 100".
The formula is P/B = R/100
B. Using a Decimal
1. Change the percent to a decimal.
2. Multiply that decimal by the number you are finding the percent of.
Use the formula: R x B = P
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