Operations with Positives and Negatives
-3 + 27
24
These two steps come last in the order of operations.
Addition and Subtraction
Find the area of a circle with a radius of 8 cm
200.96 cm2
Also called opposite angles
Vertical angles
If an event is as likely as not, what is the probability?
(write as a fraction)
1/2
-24 - 37
-61
Solve:
23(43 - 17)
208
Find the area of a circle with a radius of 16 in
803.84 in2
If the measures of two angles add up to 180o, they are called this
Supplementary angles
If an event is impossible, what is its probability?
0
2(-5 + 4) - 4
-6
Solve:
56 - 52(16 - 28)
372
Find the circumference of a circle with a radius of 20 cm
125.6 cm
Two angles measure 90o. If one measures 60o, what is the measure of the second angle?
30o
There are 3 red, 4 grey, and 7 blue marbles in a jar. If Jerry draws 4 marbles and replaces them in the jar, how likely is it that all of them are grey?
Unlikely
24 + 7(-5 - 4) - 7
-46
Solve:
16/2(8 - 5)
12
Find the area of a circle with a diameter of 102 in
8,167.14 in2
Two angles make a straight line. The measure of one of the angles is 135o. What is the measure of the second angle, x?
x = 45o
Hannah has a box of 200 blocks. 80 blocks are purple, 10 are yellow, and the rest are green. If Hannah reaches into the box and removes one block, what is the probability that the block she picks is green?
(write as a fraction in simplest form)
11/20
22(-6*(-2)) + 54*20
6,888
Solve:
14 - 2[7 + 82 - (6 + 5)]
-68
Find the circumference of a circle with an area of 8,901 cm2
(round to the nearest hundredth)
334.36 cm
Two angles make a straight line. One measures 70o. The other is split into five equal sections. What is the measure of one of the five sections, x?
x = 22o
There are 3 blue and 3 white marbles in a bag. Bianca pulls one from the bag without looking, and does not replace it. She repeats this one more time. What is the theoretical probability that she draws a blue marble both times?
(write as a fraction)
1/10