What's Your Sign?
Numbers "For Real"
The Proper Properties
Keep it Simple
If, Then, What?
100
When you add two negative numbers, the answer will be __________.
negative
100

Give two examples of numbers that are NOT whole numbers.

any fraction or decimal

100
Which property allows you to change the order of numbers you are adding or multiplying?
commutative
100

Simplify 5x - 3x + 5

2x + 5

100
If you are asked to find an absolute value of a negative integer, then the number is always positive. (TRUE or FALSE AND GIVE AN EXAMPLE)
True l-3l = 3
200
-2a - (-a) = ___________
-a
200
Integers include all negative and positive real numbers, except _____________
decimals and fractions that can't be simplified to a whole number
200
Which property allows you to group numbers that you are multiplying or adding in different ways?
Associative
200

Simplify 4x + 9 - 6x +7

-2x + 16

200
If a number is rational, then it can't be irrational. (TRUE or FALSE AND GIVE AN EXAMPLE)
True, irrational numbers are decimals that never repeat or end and rational numbers repeat 1/3 = .3333... or end 1/2 = .5
300
If you multiply an odd number of negative integers, the answer will always be ____________.
negative
300
Give two examples of irrational numbers.
╥ and/or any square root of a nonperfect square
300
Both addition and multiplication have this type of property that basically says when you add or multiply this special number by any other number, the other number is not changed. (for addition this special number is 0, and for multiplication, this special number is 1)
identity
300

l-8l - 20 + 5x

5x - 12

300
If a number is close to 81, then it's approximate square root is 9. (TRUE OR FALSE)
True
400
A negative number divided by another negative number will be ___________ (negative or positive).
positive
400
What four number sets does 3 fit into?
real, rational, integer, and whole
400
What type of property is shown by the following examples? a + (-a) = 0 a x 1/a = 1
Inverse
400

√67 + 5 - 4x - 6x (hint, use the approximate value of √67)

-10x + 13

400
If a number is negative, then it is always an integer. (TRUE or FALSE AND GIVE AN EXAMPLE)
False, -1/4 is not an integer (any negative fraction or decimal would work)
500
What will the sign be for this equation? (-2a + a) ÷ (-b)
positive
500
True or False: All whole numbers are rational. Give an example to explain.
True, any whole number can be written as a fraction by putting that number over 1.
500

Use the distributive property to simplify: 2(3x - 7) + 4x

10x - 14

500

(4x - 5)/2

2x - 5/2

500
If a student is a sophomore, then they are in their 2nd year of high school.
False, they could be a sophomore by credits if they flunked their previous classes.
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