Evaluating Expressions
Evaluate the expression: x2+3y
when x=-2 and y=4
16
John (j) is 3 inches taller than Anna (a). What is an expression we can use to describe John's height?
3+a=j
Evaluate the following expression:
3x2+4y+z
when x=2, y=-3 and z=10
10
the sum of 2 times a number and another number
2x+y
What is the square root of 121?
11
Evaluate the following expression:
(2x)/y
x=10, y=5
4
The difference of twice a number and 12
2x-12
Evaluate the expression:
xy+z
x=10, y=3 and z=2
32
3 more than the product of a number and 12.
Distribute:
3(x+2)
3x+6
7-2y
y=3
1
The difference of a number and eight divided by three
(x-8)/3
Evaluate:
x2+2x
x=-3
3
Create an expression that means:
three times a number plus the quantity of the sum of a different number and four
3x+(y+4)
What is -|-4|?
-4
Evaluate: 2a+3b
a=4, b=-2
2
The sum of twice a number and 4, increased by 7
(2x+4)+7
Evaluate:
3x2-4x+1
x=2
Three times the difference between a number and 5
3(x-5)
what is 33?
3*3*3=27
Evaluate:
(4x+6)/2
x=3
9
If you have $20 and you spend x dollars, how much do you have left?
20-x
xyz+x2
x=3, y=-2, z=4
-15
The product of a number and 7 is reduced by 9 to get 20
7x-9=20
What type of pet does Ms. Stitely have?
Cat