Number Sense and Operations Flashcards
7 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 7 Number Sense and Operations flashcards as text
A shirt originally costs $40 and is on sale for 25% off. What is the sale price?
Answer: $30
25% of $40 = $10 discount; $40 − $10 = $30 sale price.
What is the value of 5²?
Answer: 25
5² means 5 × 5 = 25.
What is √144?
Answer: 12
12 × 12 = 144, so √144 = 12.
Which number has the greatest absolute value?
Answer: -15
|−15| = 15, which is greater than |12| = 12, |−8| = 8, and |10| = 10.
What is 4.5 × 10³ written in standard notation?
Answer: 4,500
4.5 × 10³ = 4.5 × 1,000 = 4,500.
A store raises a price from $50 to $65. What is the percent increase?
Answer: 30%
Percent increase = (change ÷ original) × 100 = (15 ÷ 50) × 100 = 30%.
Which fraction is equivalent to 0.6?
Answer: 3/5
0.6 = 6/10 = 3/5 when reduced to lowest terms.