Expressions
This is the mathematical phrase that shows numbers, operations, and sometimes variables, but has no equal sign.
Expression
1/2 + 1/2
1
Sarah buys 3 notebooks for $2 each. How much does she spend?
$6
What is the perimeter of a rectangle with length 6 and width 4?
20 Units
If x=4, what is 2x?
8
Simplify 3+4+73 + 4 + 73+4+7
14
Simplify 12/18
2/3
A rectangle has a length of 8 and width of 5. What is its area?
40 Square Units
A triangle has a base of 10 units and height of 5 units. What is its area?
25 square units
If y=7, evaluate y−3.
4
Write an expression for “five more than twice a number nnn.
2n+5
Multiply 3/4 and 2/5
6/20 = 3/10
A toy costs $45. It is on sale for 20% off. What is the sale price?
$36
A rectangular prism has length 3, width 2, and height 4. What is its volume?
24 cubic units
Write an equation: “Six less than a number is 12.”
x−6=12
Simplify 2(3+x)+4
2x+10
Divide 7/8 and 2/3
21/16 = 1 5/16
A car travels 180 miles in 3 hours. What is its speed in miles per hour?
60 mph
A square has an area of 49 square units. What is the length of one side?
7 units
Solve for x: 5x=25
x = 5
If x=6x = 6x=6, evaluate 3x+2(4+x)
**A number next to a variable is multiplication
** A letter or number next to a parenthesis is multiplication
34
A recipe calls for 2/3 cup of sugar. You want half the recipe. How much sugar do you need?
1/3 cup
A number is tripled, then 7 is added, and the result is 25. What was the number?
6
A rectangular garden has a length of 12 feet and width of 8 feet. What is the perimeter and the area?
Perimeter: 40 feet
Area: 96 square feet
Solve for y: 3y+4=19
y = 5