Mathematics - Number Sense Flashcards

6 cards from real CHSPE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Mathematics - Number Sense flashcards as text

A recipe calls for 2/3 cup of sugar. If you triple the recipe, how much sugar do you need?
Answer: 2 cups
2/3 × 3 = 6/3 = 2 cups.
What is the value of |−15| + |7|?
Answer: 22
Absolute value makes each number positive: 15 + 7 = 22.
A car travels 300 miles on 12 gallons of gas. What is the car's fuel efficiency in miles per gallon?
Answer: 25 mpg
300 ÷ 12 = 25 miles per gallon.
What is the prime factorization of 60?
Answer: 2² × 3 × 5
60 = 2 × 2 × 3 × 5 = 2² × 3 × 5, where all factors are prime.
Which number is divisible by both 3 and 8?
Answer: 48
48 ÷ 3 = 16 and 48 ÷ 8 = 6, so 48 is divisible by both.
If a price increases from $50 to $65, what is the percent increase?
Answer: 30%
Percent increase = (15/50) × 100 = 30%.