equations
Write an expression for 7 less than 4 times a number.
4x-7
what is 25% of 80?
20
5, 10, 15, 20, _, _, _
25, 30, 35
Find the LCM of 3 and 5
15
13
prime
a number divided by 3, then 6 is added
x/3 + 6
A jacket costs $50 and is 20% off. How many dollars do you save?
$10
2, 6, 18, 54, _, _, _
162, 486, 1458
Find the LCM of 4 and 10
20
21
composite
a rectangle's length is 5 less than 3 times its width. find the perimeter when w=4
22
A bill at a restaurant is $36, and you tip 15%. How much is the tip?
$5.40
Input: 1, Output: 6
Input: 2, Output:10
Input: 3, Output:14
Input: 4, Output:18
What is the rule? Write an equation
y = 4x + 2
Find the LCM of 9 and 12
36
29
prime
Maya is 4 more than twice her sister's age. If Maya is 18, how old is her sister?
7
A student gets 54 out of 60 questions on a test correct. What percent did the student score?
90%
A building has 7 windows per floor. Write an equation for the rule.
y = 7x
Find the GCF of 18 and 24
6
49
List the factors.
1, 7, 49
A rope is cut into three pieces. The second piece is 3 meters longer than the first. The third piece is twice as long as the first. The total length of the rope is 39 meters. How long is each piece?
First: 9 m
Second: 12 m
Third: 18 m
A laptop costs $800 and is on sale for 25% off. What is the final sale price?
$600
Input: 1, Output:9
Input: 2, Output:14
Input: 3, Output:19
Input: 4, Output:24
Write an equation.
y = 5x-1
Find the LCM and GCF of 6 and 9.
LCM: 18
GCF: 3
Which of the following are prime and which are composite: 37, 48, 51, 71
37 -> prime
48 -> composite
51 -> composite
71 -> prime