Vocabulary
A symbol that can represent one or more numbers, is usually a letter.
Variable
Find the possible values of f.
f - 4 > 8
f > 12
Maria threw the softball more than 100 feet. Write an inequality that represents d, distance.
d > 100
Find the value of s.
s + 6 = 10
s = 4
Two brothers bought 20 books together. One brother bought 8. How many books did the other buy? Write an equation to solve.
8 + b = 20
b = 12
A mathematical sentence that has an equal sign.
Equation
Find the possible values of p.
p + 14 < 34
p < 20
You are allowed to eat less than 6 bananas and you have already eaten 2. Write an inequality to find the possible amount of bananas you can eat today
2 + b < 6
b < 4
Find the value of x.
x - 15 = 30
x = 45
Gabby is 5 times older than her sister Paige. Gabby is 20 years old. Create an equation to find out a, Paige's age.
5a = 20
a = 4
A mathematical sentence that could contain < or >.
Inequality
Find the possible values of k.
k + 15 > 24
k > 9
You are at a supermarket and you are allowed to spend more than $60 on snacks. You have already spent $25. Write an inequality to find the possible amount of money you can still spend at the supermarket.
m + 25 > 60
m > 35
Find the value b.
4b = 36
b = 9
Joe bought 6 boxes of chocolate. He used a coupon that took $1.00 off his total bill. His total bill came to $23.00. Write an equation to show how much each box of chocolate cost.
6b - 1.00 = 23.00
b = 4
A mathematical phrase with only numbers and operation symbols, no answer.
Expression
Find the possible values of x.
x - 20 < 74
x < 94
To ride the power tower at Valleyfair you must be greater than 54 inches. Kevin is 42 inches. Write an inequality to show how much more Kevin will need to g, grow in order to ride.
42 + g > 54
g > 12
Find the value of g.
3g + 12 = 42
g = 10
At your local farmers market, it costs $5 to rent a stand, and $3 for every hour you stay there. If you paid a total of $35, how many hours did you stay at the farmers market?
3h + 5 = 35
h = 10
The property used to multiply numbers outside parenthases
Distributive Property
Find the possible values of d.
112 + d > 150
d > 38
Debbie wants to spend less than $60 on clothes. She wants to buy a pair of jeans for $22 and spend the rest on t-shirts. Write an inequality to find the possible amount of money Debbie can spend on t-shirts.
22 + m < 60
m < 38
Find the value of k.
k/5 - 10 = 15
k = 5
Kameron wants to buy a new sound system for $145. He has already saved $65. He gets $20 for each lawn that he mows. Write an equation to show how many lawns Kameron must mow in order to have enough money for his new sound system.
20L + 65 = 145
L = 4