Use the cross products of proportions to find base b in percent problems.
Use the cross products of proportions to find base b in percent problems.
Explains how to use proportions and cross products to solve for the base as well as the percent and the amount.
Goes through the steps of solving 36 is 15% of what number using a percent proportion.
Whole number percentage calculations - without units
Whole number percentage calculations - with units
Whole number percentage calculations - with compound units
Decimal percentage calculations - without units
Decimal percentage calculations - with units
Percentage calculation - one-step word problems
Percentage calculation - two-step word problems
Percentage calculation - multi-step word problems
These flashcards will help you to better understand 7th grade math.