Math Flashcards
7 cards from real BECE 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 triangle has angles measuring 50° and 70°. What is the third angle?
Answer: 60°
Angles in a triangle sum to 180°; 180 − 50 − 70 = 60°.
What is the LCM of 4, 6, and 8?
Answer: 24
The smallest number divisible by 4, 6, and 8 is 24.
Express 0.045 as a fraction in its simplest form.
Answer: 9/200
0.045 = 45/1000; simplify by dividing by 5 twice: 9/200.
If y = 2x − 3, what is y when x = 5?
Answer: 7
Substitute x = 5: y = 2(5) − 3 = 10 − 3 = 7.
A bag contains 3 red, 4 blue, and 5 green balls. What is the probability of picking a blue ball?
Answer: 1/3
Total = 12 balls; P(blue) = 4/12 = 1/3.
What is the perimeter of a square with side 9 cm?
Answer: 36 cm
Perimeter of a square = 4 × side = 4 × 9 = 36 cm.
Evaluate: 5! (5 factorial)
Answer: 120
5! = 5 × 4 × 3 × 2 × 1 = 120.