Write the expression
John has x amount of candy. Suzy has 5 more than him.
Write the expression that represents this.
x + 5
x - 34 = 60
Solve for x
x = 94
Do the OPPOSITE of subtraction!
60+34 = 94
x=94
Solve:
3+5*2
5 x 2 FIRST
THEN add 3.
13.
Solve: 3(2)
6
In math, what is the term "variable" used for?
A number you do not know.
What has legs but doesn't walk?
(3 possible answers)
Answers:
A chair.
A table.
A desk.
Tasha has x amount of oreos. Vance has three times more.
Write the expression that represents this.
3x
OR
3*x
3x = 27
Solve for x
x = 9
32+1
10
3x3 first
THEN + 1
Simplify:
2(5x)
10x
What is a numerator?
The top number of a fraction.
What's at the end of a rainbow?
The letter w.
Sunny has x dollars. Joe has fifteen less than him.
Write the expression that represents this.
x - 15
x/5 = 40
Solve for x
x = 200
Fractions are DIVISION
Do the OPPOSITE!!!
5x40 = 200
4*3+6*2
Evaluate:
FIRST 4 * 3 = 12
THEN 6 * 2 = 12
THEN add them together.
12+12 = 24.
6x + 3
3 x 2x = 6x
3 x 1 = 3
6x + 3
What is area and how do you find it?
Area is the inside space of a figure. You multiply the length times width.
What fills up a room, but takes up no space?
Light
Indy has double the tickets that Tommy has. Tommy has x tickets.
Write the expression that represents this.
2x
OR
2*x
Solve for x.
-2x=30
x = -15
30 divided by -2 = -15
Evaluate:
5+(3*4)^2
Parenthesis FIRST. (3*4) = 12
THEN to the power of 2. 12 x 12 = 144
THEN plus 5.
144 + 5 = 149
5(x + 12)
5x + 60
5 x 1x = 5x
5 x 12 = 605x + 60
What is volume and how do you find it?
Volume is the INSIDE space that an object takes up.
Volume is length x width x height
The more there is the less you see. What is it?
Darkness.
Bob has three more than twice as many dollars as Paul. Paul has x dollars.
Write the expression that represents how much money Bob has.
Bob has 2x + 3 dollars
OR 3+2x dollars
Solve for x.
2x + 10 = 50
x = 20.
2 x 20 + 10 = 50.
Evaluate:
2*(2+3)*3^2
Parenthesis first: 2+3=5
THEN EXPONENTS 3*3 = 9
Now you have
2*(5)*9
Now just multiply across: 2*5 =10 * 9 = 90.
Simplify:
8(2x - 5y)
16x - 40y
What is a coefficient, and what does it mean to do?
A coefficient is the number NEXT to the variable.
It means to multiply that number to the variable.
3x means 3 TIMES x.
You’re running a race and, just before the finish line, you pass the person in second place. In what place did you finish the race?
...Second place. You didn't pass the person in FIRST.