Powers
Write 3 x 3 x 3 x 3 as a power.
34
Find the GCF of 15 and 25.
Use substitution to solve.
s = 6
25 x s
25 x 6 = 150
Max earns $3.00 per yard mowed and $6.00 per yard raked. if m is the number of yards mowed and r is the number of yards raked, write an equation to represent the total he earned.
Max earns = 3.00m + 6.00r
Write an equivalent equation.
6s + 21
21 + 6s
Evaluate 53
125
Find the GCF of 40 and 70.
GCF = 10
Use substitution to solve.
b = 8
28 + 3b
28 + 3(8) = 52
Sam wants to rent a bus for a day. It will cost a daily fee of $60 plus $0.35 per mile driven, m. Write an expression that shows the amount she will pay for the car.
Sam will pay = 60 + 0.35m
Write an equivalent equation.
2(6m + 8)
12m + 16
Explain what each number in the expression means: 38
3 is the base number and the number being multiplied. 8 is the power and how many times the base is being multiplied.
Find the GCF of 35 and 60.
GCF = 5
Use substitution to solve.
h = 6.2
3.1h - 16 + 2h
3.1h - 16 + 2h = 15.62
Evaluate the expression.
(3.6 + 5.2)x + (20 -10)x
18.8x
Write an equivalent equation.
14w - 28
7(2w - 4)
Write 4 x 4 x 4 x 4 x 4 as power and evaluate.
45 = 1,024
Find the GCF of 42 and 75.
GCF = 3
Use substitution to solve.
m = 3 ; n = 6
2.1m + 36 - 3n
2.1m + 36 - 3n = 24.3
Evaluate the expression.
(4.8 + 21.6)w - (3.8 + 1.9)w + 5.7
20.7w + 5.7
Write an equivalent equation.
6m + 4 + 6m + 8
12m + 12
The same digits are used for the expressions 62 and 26. Explain how to compare the value of each expression (<,>,=).
62 = 6 x6 = 36
26 = 2 x 2 x 2 x 2 x 2 x 2 = 64
So, 62 < 26
Find the GCF of 30 and 54 and use the GCF to find the sum.
GCF = 6
Sum = 84
Use substitution to solve.
r = 6 ; s = 9.2 ; t = 6.4
4r - 2s + t
4r - 2s + t = 12
Evaluate the expression.
21.8 + (3.1 x 2)m - 2m
21.8 + 4.2m
Write an equivalent equation.
4n + 22 - 12 + 8n
12n - 8