In a proportion, the amount is the part of the base that is being calculated.
In the context of the percent equation, the base is the part of the whole from which the amount is calculated.
In common use, a decimal refers to part of a whole number. The numbers to the left of a decimal point represent whole numbers, and each number to the right of a decimal point represents a fractional part of a power of one-tenth. For instance: The decimal value 1.24 indicates 1 whole unit, 2 tenths, and 4 hundredths (commonly described as 24 hundredths).
An equation is a mathematical sentence that describes two equal quantities. Equations contain equals signs.
Inverse operations are operations that "undo" each other. Multiplication is the inverse operation of division. Addition is the inverse operation of subtraction.
Percent means out of 100. It is a quantity written with a % sign.
Explains how to find the base number when you know a percent.