Addition/Subtraction
5 + 92
86
39 * 0
0
(1/4)2
1/4 * 1/4 = 1/16
Ms. Sadeghi thinks 43 equals 12. Identify and explain her mistake.
She multiplied the base by the exponent, which is incorrect. Instead, multiply the base (4) by itself 3 times.
4 * 4 * 4 = 64
What is the side length of a square with an area of 81 square feet?
9 feet
9 + 33
36
6 * 52
150
(1/3)2 * 81
1/3 * 1/3 = 1/9
1/9 * 81 = 81/9 = 9
Which is smaller: 63 or 43? Explain how you know.
43 is smaller than 63 4 multiplied by itself 3 times is smaller than 6 multiplied by itself 3 times.
Each edge on a cube is 7 units. Write an expression to represent its volume.
73 cubic units
16 - 42
0
5 * 101
50
54 * 1/5
If 83 = 512, how would you quickly evaluate 84?
Multiply 512 by 8
What is the edge length of a cube with a volume of 216 cubic units?
6 units
30 - 24
14
43 * 2
128
1/6 * 63
(6 * 6 * 6)/6 = 6 * 6 = 36
Define a perfect square and give an example.
Define a perfect cube and give an example.
Perfect square = x * x (Example: 25)
Perfect cube = x * x * x (Example: 8)
Each edge on a cube is 4 units. Write an expression to represent its surface area.
6 * 42 square units
100 - 52 + 25
107
180 * 19
180 = 1
1 * 19 = 19
((1/4) * 4)3
1/4 * 4 = 1
13= 1
If 94 = 6561, how would you quickly evaluate 93?
Divide 6561 by 9
Each edge on a cube is 2 units. Write an expression to represent its surface area.
6 * 22 square units