Vocab
Negative Numbers
The numbers on the left side of the zero on a number line.
Solve |8|
8
A football team loses seven yards the first play and gains 3 yards the second play. How many total yards have they gained or lost in both plays?
They lost 4 yards.
Opposite Numbers
The positive and negative versions of the same number.
-12 + 5
-7
8 - 11
-3
Solve |-12|
12
-5 degrees
Zero Pair
Two opposite numbers make a zero pair because they add to zero.
-36 + (-14)
-50
15 - (-23)
38
Order from Least to Greatest
-9, 0, 12, -5, -1, 3, 7
-9, -5, -1, 0, 3, 7, 12
You have $25 in your wallet. You pay your friend $17 for buying you lunch, and another friend gives you $8. How much money is in your wallet after all money has changed hands?
$16
Integers
Positive and Negative Whole Numbers
How do you find the sum of numbers with different signs?
Subtract and take the sign of the bigger number.
-62 - (-15)
-47
Order from Greatest to Least
1, -12, -10, 17, 6, -2, 4
17, 6, 4, 1, -2, -10, -12
Starting on the first floor of a building, you walk up 6 flights of stairs, down 3 flights of stairs, up 7 slights of stairs, and down 5 flights of stairs. On what floor do you end up?
6th floor
Absolute Value
The positive distance of a number from zero.
-16 + 25 + -37
-28
-12 - 35 - (-7)
-40
Solve |-12 - 25|
37
A hiker climbs up a mountain 257 ft. A diver, dives into the ocean until he reaches 89 ft. What is the total distance between both people?
346 feet