Algebraic Thinking Flashcards
7 cards from real CAASPP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Algebraic Thinking flashcards as text
Which equation represents the relationship: 'a number tripled, then decreased by 4, equals 11'?
Answer: 3n - 4 = 11
Tripling a number gives 3n, and decreasing by 4 gives 3n - 4 = 11.
What is the value of x if 5x + 3 = 28?
Answer: 5
Subtracting 3 from both sides gives 5x = 25, so x = 5.
A function rule states f(n) = 4n − 1. What is f(7)?
Answer: 27
f(7) = 4(7) − 1 = 28 − 1 = 27.
Which table of values matches the rule y = 2x + 5?
Answer: x=1,y=7; x=2,y=9; x=3,y=11
When x=1: 2(1)+5=7; x=2: 2(2)+5=9; x=3: 2(3)+5=11.
If the pattern of triangles follows the sequence 1, 4, 7, 10, …, what expression gives the nth term?
Answer: 3n − 2
The sequence increases by 3 each time, and the first term is 1, giving 3n − 2.
Two students earn the same weekly pay. Maria works 8 hours and earns $72. How much does Carlos earn if he works 5 hours at the same rate?
Answer: $45.00
The hourly rate is $72 ÷ 8 = $9, so 5 × $9 = $45.
Which inequality is represented by 'a number is at most 15'?
Answer: n ≤ 15
'At most 15' means the number can equal 15 or be less, written as n ≤ 15.