Vocabulary
What is an integer?
A whole number and it's opposite.
A positive or negative whole number.
What is the opposite of 12?
-12
Write the integer to describe the situation.
7 feet below sea level
-7
-15 + -5
-20
-5 x 9
-45
When using a number line, everything to the right of zero is ________ and everything to the left of zero is _________.
positive
negative
What is the absolute value of 3?
|3| = ?
-3
Write the integer to describe the situation.
An increase of 4 inches
4
7 + (-13)
-6
-6 x -12
72
When subtracting with integers, what is the first thing you should do?
Keep Change Change
Use the >, <, or = for these statements:
-18 ___ -12
|-10| ___ |4|
-(-8) ____ 8
<
>
=
Write the integer to describe the situation.
A profit of $60
60
-14 - (-28)
-14
-116 divided by 4
-29
Define absolute value.
The distance a number is from zero
Order the values from greatest to least
-4, -8, 10, 7, 1, -3, |-2|
10, 7, |-2|, 1, -3, -4, -8
Dion was 17 feet below seal level at the same time that Fiona was 11 feet above sea level. Who was farther from sea level?
Dion was farther from sea level
In a game, Penny and her cousins each have a different bank account balance. What is the sum of all of their bank accounts?
Penny: -$12
Ted: $8
Holly: -$5
Jack: $7
-$2
Quinn and Leo are playing a game where they are given two numbers and must multiply them together to find the third number in the row. Then, they will multiply the 2nd and 3rd number in the row to find the 4th number. They continue until the row is completed. If the person with the largest number in the 5th column wins, who is the winner?
Quinn: 2, -5, ___, ___, ___
Leo: 4, -3, ___, ___, ___
Quinn: 2, -5, -10 , 50 , -500
Leo: 4, -3, -12 , 36, -432
LEO WINS
Describe what to do in an addition of integers problem. BE DETAILED
2 - same sign = add the absolute values
different sign = subtract the absolute values
3 - determine the sign of the answer based on the number with the largest value
At the end of the mini-golf game Heather was 2 over par, Alphonso was 3 under par, Jackie was par, Wanda was 1 under par, and Trevor was 4 over par. Write an integer to represent each of their golf scores and order them from 1st to 5th place. (Remember the lowest score in golf wins!)
Heather: 2 >>> 4th
Alphonso: -3 >>> 1st
Jackie: 0 >>> 3rd
Wanda: -1 >>> 2nd
Trevor: 4 >>> 5th
Jackson ordered a pair of shoes online from amazon for $94. When amazon found the shoes were out of stock indefinitely, Amazon credited Jackson's account for $94.
What integer best represents this situation?
0
A checking account is overdrawn by $13 on both Friday and Saturday. If the owner of the account deposits $24 on Sunday, what is their current balance?
-$2
One January day, the low temperature in Fargo ND was -8 degrees. The temperature rose 4 degrees every hour for the next six hours. After six hours, what was the temperature?
16 degrees