Math Flashcards
7 cards from real CAHSEE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Math flashcards as text
A store sells notebooks for $2.75 each. If Maria buys 4 notebooks and pays with a $20 bill, how much change does she receive?
Answer: $9.00
4 × $2.75 = $11.00, and $20.00 − $11.00 = $9.00 change.
What is the slope of the line that passes through the points (2, 5) and (6, 13)?
Answer: 2
Slope = (13 − 5) / (6 − 2) = 8 / 4 = 2.
Which of the following is equivalent to 3(x + 4) − 2x?
Answer: x + 12
3(x + 4) − 2x = 3x + 12 − 2x = x + 12.
A triangle has angles measuring 45° and 75°. What is the measure of the third angle?
Answer: 60°
The angles of a triangle sum to 180°, so 180° − 45° − 75° = 60°.
Simplify: (4x²)(3x³)
Answer: 12x⁵
Multiply coefficients (4 × 3 = 12) and add exponents (2 + 3 = 5) to get 12x⁵.
A bag contains 3 red, 5 blue, and 2 green marbles. If one marble is drawn at random, what is the probability it is blue?
Answer: 1/2
There are 5 blue out of 10 total marbles: 5/10 = 1/2.
What is 15% of 240?
Answer: 36
15% × 240 = 0.15 × 240 = 36.