Integers and Rational Numbers
What type of number is 3/7?
Rational
Simplify the expression
3x + 5x - 2x
6x
Convert 3/5 to a decimal.
0.6
What is the probability of flipping a fair coin and getting heads?
1/2
Are all integers real numbers?
YES...all numbers are real numbers!!
Simplify
-8x + 3 - 5x + 7
-13x + 10
Evaluate the expression:
2y+7 when y=3.
13
Convert 40% to a fraction in simplest form.
2/5
A bag contains 3 red marbles and 2 blue marbles. What is the probability of picking a blue marble at random?
2/5
Give an example of an irrational number.
Answers will vary.
Which is greater?
4- or -1
-1
Solve the equation: a − 9 = 5
What is 25% of 80?
20
If you roll a standard six-sided die, what is the probability of rolling an even number?
1/2
Is the number 0 rational or irrational? What is the smallest subset it can go in?
Rational. Whole Numbers.
What is the opposite of -15
15
4(m+2) − 3m
m + 8
The temperature last Sunday was 85 degrees. This Sunday, it was 73 degrees. What is the percent of change from last Sunday to this Sunday?
14% decrease
You have a set of cards with 5 red cards and 3 black cards. What is the probability that you pick a red card, do not put it back, and then pick another red card?
5/14
What is the smallest subset that 55/11 can go in?
Natural Numbers
Place the following rational numbers in ascending order:
-1/2, 3/4, -0.75, 0.25
-0.75, -1/2, 0.25, 3/4
Solve the equation: b/4 = −6
b = -24
If a store offers a 20% discount on an jacket originally priced at $50, what is the sale price?
$40
What is the probability of rolling an odd number on a number cube, and flipping a coin and getting heads?
1/4
List all of the subsets of the Real Number System in order.
Irrational