Operations: Add and Subtract
1/2 + 1/4
3/4
k = x/y
True or False
False
0.67 m = _____ cm
67 cm
1/2 x 6 =
3
y = 5x What does y equal when x = 2? x = 3? x = 10?
10, 15, and 50
30 + (-70) =
-40
How do you know the graph of a line is proportional?
The straight line goes through the origin.
Max Pacioretty played for the Toronto Maple Leafs. What number did he wear?
67
-3.5 x 6 =
-21
How many children does Mr. Wood have?
3
50 - (-40) =
90
How do you know that a table has a constant of proportionality?
The ratios (y/x) are the same for every pair of values.
Do you have school tomorrow?
No
-2/3 x 9 =
-6
Simplify 18/81
2/9
-5.5 + 2.5 =
-3
y = 2x + 1
Proportional or not proportional? Explain
Not proportional because it does not go through the origin. The y-intercept is 1.
The starting point guard is 5 feet 7 inches. How tall is he in inches?
67 inches
-75 / 5 =
-15
Who do the Buffalo Bills play next?
Atlanta Falcons
-3/8 - 1/8 =
-1/2
y = 4x What is the constant of proportionality?
4
How many minutes are in 67 hours?
4020 minutes
3/4 / 1/2 =
3/2 or 1 1/2
5 + 7 x (-2) =
-9