Adding
-4 + 3
-1
7 - 9
-2
Evaluate: x - 9 when x = 10
10 - 9
1
On Thursday, the temperature in Spincich Lake, Michigan, was 22° Fahrenheit. By Friday, the temperature had dropped 35° Fahrenheit. What was the temperature on Friday?
22 - 35 = -13
l - 6 l
6
-5 + (-6)
-11
5 - (-3)
8
Evaluate: x - 5 when x = - 5
(-5) - 5
-10
The temperature in St. Paul, Minnesota was −19°F at sunrise. By noon the temperature had risen 26°F. What was the temperature at noon?
-19 + 26 = 7
l6 - 9l + l5 + 3l
l6 - 9l + l5 +3l
l-3l + l8l
3 + 8
11
20 + (-14)
6
-14 - 12
-26
Evaluate: 9 - x when x = -3
9 + 3
12
Lupe owes $73 on her credit card. Then she charges $45 more. What is the new balance?
(owes means she has negative money)
-73 + (-45) = 118
Evaluate: - l -x l when x = -2
- l -(-2) l
- l 2 l
- (2) = -2
19 + (-11) + (-5)
3
-10 - 5 - (-9)
-6
Evaluate: x3 - 5x when x = 2
(2)3 - 5(2)
8 - 10
-2
April lost 5 pounds the first week of her diet. Over the next three weeks, she lost 3 pounds, gained 2 pounds, and then lost 1 pound. What was the change in her weight over the four weeks?
-5 - 3 + 2 - 1 = -7
Translate and Solve:
4 less than x is 9
x - 4 = 9
x = 13
62 - 72 + 32
-4
-9 - 9 - 8 - (-16)
-10
-9x - 4x2 + 5 when x = 3
-9(3) - 4(3)2 + 5
-27 - 4(9) + 5
-27 - 36 + 5
-63 + 5 = -58
Ozzie rode his bike for 30 minutes, burning 168 calories. Then he had a 140-calorie iced blended mocha. Represent the change in calories as an integer.
-168 + 140 = -28 calories total
Translate and Solve:
187 is x increased by -150
187 = x + (-150)
x = 337