8th Grade Math Review

Front

What is scientific notation?

Back

A way of expressing numbers that are too big or too small to be conveniently written in decimal form, using powers of ten.

Front

Convert 0.0002 to scientific notation.

Back

2.0 x 10^-4

Front

What does it mean for a set of numbers to be in descending order?

Back

The numbers are arranged from largest to smallest.

Front

Arrange the following in descending order: 15%, 0.45, 9/10.

Back

9/10, 0.45, 15%

Front

What is the definition of slope in mathematics?

Back

The ratio of the rise (change in y) to the run (change in x) in a graph.

Front

If a graph has a positive association, what does that indicate?

Back

As one variable increases, the other variable also increases.

Front

What is the slope of a line that rises $3 for every 1 balloon?

Back

$3 per 1 balloon.

Front

How do you convert a percentage to a decimal?

Back

Divide the percentage by 100.

Front

What is the decimal equivalent of 15%?

Back

0.15

Front

What is the formula for calculating the slope of a line?

Back

Slope (m) = (y2 - y1) / (x2 - x1).