PEMDAS
Solve 5+3x2
11
A teacher has 16 students and wants to put them in 4 rows. Student A says the teacher can find the number of students in each row by doing 4 ÷ 16. Student B says the teacher can find the answer by 16 ÷ 4. Who is correct?
Student B
If the equation 108 ÷ 9 = a can be restated as 9 x a =108, what is the value of a?
12
What is the inverse of 3 x 2 =6?
6 ÷ 3 = 2
Solve 9/3 +3x2
9
A movie theatre has 200 seats total, and each room can hold 50 seats, how many seats are in each room?
4
What equations have an unknown number of 8?
a) 56 ÷ a= 7
b)16 ÷ a= 8
c) 3x a= 32
d)a x 6= 48
A and D
What is the inverse of 42 ÷ 7
7 x 6 = 42
Solve (5x2)x32
90
A student is trying to decide how many students are in each 5th grade classroom. Students are split evenly. The whole fifth grade has 90 students and 3 fifth grade teachers. How can she solve how many students are in each 5th grade class?
90 ÷ 3
Which equation has an unknown value of 5?
35 ÷ x = 7
What is the inverse of 60 ÷ 3?
3 x 20 = 60
Solve 1+9-2 x (3+1)
2
Write a story problem to describe 180 ÷ 15. Please also solve the problem as you well.
Answer: 12
If 1000 ÷ x = 8, what is the value of x?
125
What is the inverse of 9x6?
54÷ 9=6
Solve (1x1)2 + 10x2-3
18
If {2, 9, 12, 18} is the replacement set, what is the solution to x÷6=3?
18
If x is 3 times as big as our answer which is 72, what is the value of x?
24
If 12 x 9 is the inverse of 108 ÷ 12, what did a student do wrong if they said the inverse is 12÷ 108?
You need to divide the whole by the number of groups. The total will always be broken down by the number of groups.