Vocabulary
Counting numbers, their opposites, and 0
integers
What is the opposite of -25
25
|-72|=???
72
Which is the greater number?
-0.75 or -0.5
-0.5 because it is closer to 0.
-0.75 is closer to -1.
What are the 4 math operations?
Addition, Subtraction, Multiplication, and Division
These numbers have the same distances away from 0
opposites
True or False
Two numbers can be opposites if they have the same sign, as long as they are equal distances from 0.
False
What has a greater value? Why?
-9 or -1
-1 because it is closer to 0
True or False? The number to the right on a number line is always greater?
TRUE
Answers will vary. Teacher will check for correct answers.
A number that can be written as a fraction or a decimal
The opposite of an opposite is.....
The low temperature on Monday was -6 degrees Celsius. The high temperature was 9 degress Celsius. What was the change between the high and low temperature?
Hint: a number line may help
15 degrees Celsius
2, -0.5, -1, -0.75
-1, -0.75, -0.5, 2
Evaluate
3 + 4(5-2x)
23-8x or -8x-23
The distance a number is away from 0
absolute value
-(-10) + -(-6) = ???
10+6=16
Which is closer to the surface of a lake, a fisherman at 4 feet or a fish at -5 feet?
Fisherman
Greater than >, Less than <, and equal to =
70-32 x (14-12) +1
above sea level, at sea level, and below sea level
What is something that is true about numbers that are opposites?
They are equal distances away from 0
ERROR ANALYSIS
Gino says that the change in elevation from -152 feet to 138 feet is 14 feet. What is Gino's error? Explain how to correct the error.
Write an inequality that compares two rational numbers.
Answers will vary. Teacher will check for correct answers.
Answers will vary.