Vocabulary
Since (2/5)(5/2)=1, 5/2 is called the
Multiplicative inverse
Kailyn went out to lunch with a friend. After tax, her bill was $42.05. Which mixed number represents this amount in simplest form?
42 1/20
1/6 + (-7/9) =
-11/18
20
Compare with a < or > symbol:
7/12____-5/9
<
-7.8 is an example of what kind of decimal?
Terminating
What is -4/9 as a decimal?
-0.4444
11 1/7 - 8 5/7 =
2 3/7
(3/12)(4/21) =
1/21
Compare with a < or > symbol:
-61/468____11/12
<
The distance from zero on a number line is called the
Absolute value
On her first quiz in ELA, Samantha answer 94% of the questions correctly. On her second quiz, she answered 46 out of 50 questions correctly. On which quiz did Samantha have a better score?
She did better on her first quiz.
3/5 - 4/5 =
-1/5
5/6 divided by 2 1/6 =
5/13
The following temperatures were recorded during a science project. 12 1/2, -4, -6.55, and -6 1/4. Order the temperatures from least to greatest.
-6.55, -6 1/4, -4, 12 1/2
a number that can be expressed as a ratio of two integers written as a fraction, in which the denominator is not zero
Rational number
Find the absolute value of -|-3/7|
-3/7
3 5/9 - 2 2/3 =
8/9
-1/2 / 3 4/5 =
-5/38
Justin painted 42 1/2 square feet in 2 1/2 hours. Find his unit rate per hour.
17 square feet/1 hour
The process of using a line over the repeating digits of a decimal is called
Bar notation
How many different ways can you write -2/9?
Whoever comes up with the most...
A recipe calls for 1/8 teaspoon of vanilla extract. If the recipe is doubled, how much vanilla extract is needed?
1/4 tsp
Tyler is conducting a science experiment. He changed the temperature of a chemical solution by -3/4 degrees each minute. What is the total change in the temperature of the chemical solution after 5 minutes?
-3 3/4
What are the integer rules for addition?
Same signs add and keep.
Different signs subtract and keep the sign of the bigger number.