7th Grade Fall Semester Exam Review

Front

What is the formula to calculate the cost per gallon of gas?

Back

Cost per gallon = Total cost / Total gallons

Front

If a vehicle is filled with 21 gallons of gas for $48.09, what is the cost per gallon?

Back

$2.29 per gallon

Front

What is 25% of a number?

Back

25% of a number = 0.25 * number

Front

If there are 60 students and 25% buy lunch, how many students buy lunch?

Back

15 students

Front

What is probability?

Back

Probability is the measure of the likelihood that an event will occur.

Front

If there are 6 yellow cards, 4 blue cards, and 10 green cards, what is the total number of cards?

Back

Total cards = 6 + 4 + 10 = 20 cards

Front

What is the probability of choosing a blue or green card from a bag of 20 cards?

Back

Probability = (Number of blue + Number of green) / Total cards = (4 + 10) / 20 = 7/10

Front

What is a spinner?

Back

A spinner is a circular device divided into sections that can be spun to land on a section.

Front

If a spinner has 8 sections, how many sections are even?

Back

4 sections are even (2, 4, 6, 8).

Front

If a spinner is spun 120 times, how do you predict the number of times it will land on an even number?

Back

Prediction = (Number of even sections / Total sections) * Total spins = (4/8) * 120 = 60.