7th Grade Math Semester 1 Review

Front

What is the result of the equation: -13.4 - (-1.784)?

Back

-11.616

Front

If a jacket costs $85.00 and is on sale for 40% off, how much do you pay for it?

Back

$51.00

Front

How do you calculate the percentage increase in enrollment from 570 to 625 students?

Back

Percentage Increase = ((New Value - Old Value) / Old Value) * 100 = 9.6%

Front

What is the formula to calculate percentage of error?

Back

Percentage of Error = |(Estimated Value - Actual Value) / Actual Value| * 100

Front

If Dominic guessed 200 candies but there were actually 184, what is his percentage of error?

Back

8.7%

Front

How do you convert a distance walked in miles to miles per hour?

Back

Miles per hour = Distance (miles) / Time (hours)

Front

If Ernie walks 1/6 mile in 1/12 hour, how fast is he walking in miles per hour?

Back

2 miles per hour

Front

What is the formula for calculating a discount on an item?

Back

Discount = Original Price * Discount Rate

Front

If an item is originally $100 and has a 25% discount, what is the sale price?

Back

Sale Price = $100 - ($100 * 0.25) = $75

Front

What is the definition of percentage?

Back

A percentage is a fraction expressed as a part of 100.