Variable and Expressions
Write a variable expression for:
the sum of z and 2
z + 2
Simplify the following:
100 / ( 30 + 20 )
2
Simplify the following:
-56 + 60
4
Simplify the following:
-4 x 12
-48
Write the rule for the following sequence and what are the next three terms:
-12, -3, 6, 15, 24, ...
+9; 33, 42, 51
Write a variable expression for:
y less than 12
12 - y
Simplify the following:
15 + 20 x 3
75
Simplify the following:
80 - (-125)
205
Simplify the following:
-15 ( -8 )
120
Write the rule for the following sequence and what are the next three terms:
.15, .3, .45, ...
+.15; .6, .75, .9
Evaluate the following expression:
3x + 6; if x = 12
42
Simplify the following:
46 - 4 ( 2 + 8 )
6
Simplify the following:
-7 + 36 + ( -22 )
Simplify the following:
120 / -15
-8
Write the rule for the following sequence and what are the next three terms:
4, 8, 16, ...
x2; 32, 64, 128
Evaluate the following expression:
38 - 3y; if y = 9
11
Simplify the expression:
9 x 6 + 12 / 2
60
Write a numerical expression for the following:
Your savings account had a balance of $175 before you deposited $250
175 + 250
$425
Simplify the following:
-1 ( -2 ) ( -3 ) ( -4 )
24
Write the rule for the following sequence and what are the next three terms:
50, 43, 36, ...
-7; 29, 22, 15
Write a variable expression for the following situation:
The temperature at the top of the mountain is 4 degrees cooler than the temperature at the base of the mountain.
t - 4, where t is the temperature at the base of the mountain
Write an expression for the following situation and then simplify:
A pizza store charges $3 for delivery $10 per pizza p. How much does it cost to have three pizzas delivered?
3 + 10p; $33
Write a numerical expression for the following:
A hot-air balloon descends 450 ft from a height of 1000 ft
1000 - 450
550 ft
Simplify the following:
-78 / -3
26
You owe a friend $42. You repay him $2 the first day, $4 the second day, $6 the third day. At the rate how many days until you repay your friend completely?
6 days