Add and Subtract Integers & Rational Numbers
Dividing and Multiplying Rational Numbers
Vocabulary
Opposites/
Absolut Value
Absolut Value
Story Problem
100
-9/3 + (-3/9) =
-7/3
100
8/9
100
Two numbers that have a sum of 0 are
Additive Inverse/ Opposite
100
opposite of -4
4
100
Peter signed up for a program that costs $10.50 per month to stream movies to his computer. He decided to cancel his service after 5/6 months. He only has to pay for the amount of time he used the service. What number represents the total change in the amount of money Peter has after paying for the service?
-$10.50 x 5/6
- $8.75
200
−5 1/2 − 1 3/4
−7 1/4
200
2
200
A decimal that ends is a(n)
Terminating Decimal
200
|34 + -1913|
1879
200
Write the decimal equivalents for 5/8 and 8/11.
Are the decimals terminating or repeating
0.625 and 0.7272
Terminating and Repeating
300
42 - (-79) =
121
300
KCF is the acronym for which strategy?
Dividing Factions
(Keep, Change, Flip)
300
All positive and negative numbers that are not fractions are called
Integers
300
opposite of 2.4
-2.4
300
Audrey deposits $27 in her account. Then she makes two withdrawals, one for $15 and one for $12. What is the total change to the balance of Audrey’s account? Explain.
No Change
400
6/10 - 7/5 =
-4/5
400
What are the steps for solving the following:
Steps include:
400
Integers, fractions, repeating decimals and terminating decimals are all ____________ and can be written as a ratio or fraction
Rational Numbers
400
|-12| + |24| =
36
400
During a 15-day dry spell, the water level in a lake changed by −2 3/8 inches. What rational number represents the average change in the water level per day?
−19/120 inch
500
-117 - (-99)
-18
500
When simplifying fractions knowing what would be beneficial?
GCF (Greatest Common Factor)
Example:
Simplify
500
The distance a number is from zero is called...
Absolute Value
500
opposite of 0
0 because 0 is neither negative or positive
500
Doug digs a hole that is 1.7 feet below ground level. He plants a bush that is 3 2/10 feet tall from the bottom of the root to the top branch. How much of the bush is above the ground?
-1.7 + 3.2 = 1.5 feet