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Ground Flow
CAS
Project X
Videos
Contact

Math Room 1 – v2

Room 1: The Geometry Lab

Room 1: The Geometry Lab

Enter Your Name:

1. What is the value of the expression below?
||–8 + 4|| – ||3 – 9||

F. –2 G. –8 H. 2 J. 8 K. 10

2. A store sells a backpack for $48. This price is 20% more than the price at which the store bought it. What was the store’s cost for the backpack?

A. $38.40 B. $40.00 C. $42.00 D. $44.00 E. $46.00

3. What is the value of x if 3x − 7 = 11?

A. 3 B. 4 C. 5 D. 6 E. 7

4. The square of which of the following numbers is closest to 50?

F. 6 G. 7 H. 8 J. 9 K. 10

5. A fair number cube has sides labeled 1 through 6. What is the probability of rolling a number less than 5?

F. 1/6 G. 1/3 H. 2/3 J. 5/6 K. 4/6

Hints:

1: Evaluate inside the absolute value symbols first. |-4| = 4, |–6| = 6.
2: Set up the equation 1.2x = 48 and solve for x.
3: Add 7 to both sides, then divide by 3.
4: Square each number to find the one closest to 50.
5: Count how many values on a die are less than 5, divide by total outcomes.