7th Grade Math STAAR Review

Front

What equation can be used to find the number of additional quarters Ashton needs if he has $0.75 and needs a total of $1.50?

Back

1.5 = 0.25q + 0.75

Front

How do you calculate the volume of a rectangular prism?

Back

Volume = length × width × height

Front

What is the volume of a crate that is 1.2 feet wide, 3 feet long, and 4.5 feet tall?

Back

16.2 ft³

Front

If 7 out of 10 students carry a backpack, how do you find the expected number of students carrying a backpack out of 700?

Back

Expected number = (7/10) × 700 = 490

Front

What is the probability of selecting a blue paper clip from a cup with 7 pink and 3 blue paper clips?

Back

Probability = number of blue clips / total clips = 3/10

Front

What is the probability of selecting an orange paper clip from a cup with 3 black, 1 red, and 6 orange paper clips?

Back

Probability = number of orange clips / total clips = 6/10

Front

What is the combined probability of selecting a blue paper clip from the first cup and an orange paper clip from the second cup?

Back

Combined probability = (3/10) × (6/10) = 18/100 = 9/50

Front

How do you predict the number of shirts with a school mascot sold out of 165 shirts based on previous sales?

Back

Use the ratio of shirts with a mascot sold to total shirts sold previously.

Front

If Savannah sold 5 shirts with a school mascot out of 33 total shirts, what is the prediction for 165 shirts?

Back

(5/33) × 165 = 25 shirts with a mascot.

Front

What is the formula for finding the area of a rectangle?

Back

Area = length × width