Writing Expressions
Addition & Subtraction Equations
Multiplication & Division Equations
Functions
Grab Bag
100
Write the phrase as an expression. Let x represent the number. 80 less than a number
x - 80
100
Find the variable. x + 8 = 12
x = 4
100
Find the variable. 4x = 36
x = 9
100
Make an input-output table using the function rule and the input values x=0, 3, 6, 9, and 12. y = 5x
y = 0, 15, 30, 45, 60.
100
DAILY DOUBLE! One minute to solve this problem. 100 points per correct answer. List the vocabulary words we reviewed for writing variable expressions.
Addition: plus, the sum of, increased by, total, more than, added to. Subtraction: minus, the difference of, decreased by, fewer than, less than, subtracted by. Multiplication: times, the product of, multiplied by, of. Division: divided by, the quotient of.
200
Write the phrase as an expression. Let x represent the number. A number times 6
6x
200
Find the variable. 69 = x + 17
x=52
200
x/7 = 5
x = 35
200
Make an input-output table using the function rule and the input values x=0, 3, 6, 9, and 12. y = 4x + 6
y = 6, 18, 30, 42, 54
200
5mm = ______ cm
.5 cm
300
Write the sentence as an equation. 100 is 40 increased by a number x
40 + x = 100
300
Find the variable. x - 7 = 9
x = 16
300
Find the variable. 9 = x/20
x = 180
300
Make an input-output table, then write a function rule for the relationship. input: days, output: weeks
example: (7,1) (14,2) (21,3) (28,4) w=d/7
300
Find the area of a circle that has a radius of 4 cm.
50.24 cm2
400
Write the sentence as an equation. A number x divided by 3 is 15.
x/3 = 15
400
Find the variable. 18 = x - 3.8
x = 21.8
400
Tim practiced his trumpet for three times as long as Calvin did. Tim practiced for 105 minutes. Write and solve a multiplication equation to find how long Calvin practiced.
3x=105 Calvin practiced for 35 minutes
400
Make an input-output table using the function rule and the input values x = 0, 2, 4, 6, and 8. Graph the function. y= 12 - x
y = 12,10,8,6,4. (y-intercept is 12 on graph, slope is -1)
400
What do you call a 9-sided polygon?
nonagon
500
Write an equation you could use to solve the problem. At a restaurant, you tipped your waiter 15% of the total cost of dinner. If you tipped $7.50, what was the total cost of the dinner?
0.15x = 7.50
500
Eleven employees of a company are out of the office. There are 98 employees currently in the office. Write and solve a subtraction equation to find the total number of employees.
x - 11 = 98 total number of employees: 109
500
A rectangle has a width of 3 feet and an area of 57 square feet. Write and solve a multiplication equation to find the length of the rectangle.
3x = 57 length of rectangle = 19 ft
500
Graph the ordered pairs and draw a line through the points. Write a function rule for the ordered pairs. (0,0) (2,1) (4,2) (6,3) (8,4)
y = x/2 (slope is 1/2, y-intercept is 0)
500
Find the unit rate. 40 gal/8 hours
5 gal/h
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