Exponents
What is the repeated multiplication of 53?
5 x 5 x 5
72 − 32 × 4
13
In the expressions 2b + 3r, tell how many terms there are and name them.
2
2b and 3r
Evaluate when a = 4
5a − 3a + 11 − a2
3
Simplify the expression by combing like terms.
88c + 12c + 34
100c + 34
What is the value of 43?
64
(82 + 36) ÷ (4 × 52)
1
Ellen is 2 years younger than her brother Luke. Let k represent Luke's age. Write an expression that can be used to find Ellen's age.
k - 2
Evaluate when a = 6
8a− 2(3 + a)
30
No.
7n + 5 and 7n + 1 aren't equal.
30? = 900
2
12 + 21 ÷ 3 + (22 × 0)
19
A plumber charges $10 for transportation and $55 per hour for repairs. Write an expression that can be used to find the cost in dollars for a repair that takes h hours.
55h + 10
The formula V = s3 gives the volume V of a cube with side length s. The volume of a cube that has side lengths of 8 inches is
512 in3
Write an equivalent expression for 7(3d + 4)
21d + 28
Write using exponents.
3 x 3 x 3 x 3 x 5 x 5
34 x 52
(6 + 2)2 - 4 x 3
52
An online sporting good store charges $12 for each pair of athletic socks. Shipping is $2 per order. Write an expressions that Hannah can use to find the total cost in dollars for ordering n pairs of socks.
12n + 2
Evaluate when d = 10 and k = 9
d2 − 9k + 3
22
What is an equivalent expression?
4(12b + 6) - 4
48b + 20
What is 32 as a number with an exponent with 2 as the base?
25
5 x (2 + 1)2 / 3
15
Logan works part time as a florist. He earns $180 per week plus $5 for each arrangement he delivers. Write an expression that gives the amount in dollars that Logan earns for delivering f floral arrangements.
180 + 5f
Evaluate when a = 7
3(a− 1)2 + 2
110
What is equivalent to 18c + 45d.
9(2c + 5d)