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Two-Step Equations
Order of Operations and Substitution
Absolute Value
Fractions Review
Properties
100
What do you use to get rid of a number in an equation?
Inverse Operations
100
Simplify the expression 3(6) + 7 - 2(9)
7
100
-|-21| =
-21
100
Julia added 1/2 + 3/5 and got 4/7. What did she do wrong?
Julia did not find equivalent fractions using the Least Common Denominator.
100
Explain the commutative Property in your own words
The commutative property says you can change the order you write numbers in addition and multiplication without changing the value of the expression.
200
What is the goal of solving a two-step equation?
To isolate the variable
200
Simplify the expression: 20 - 2(9 - 6)^2 + 2
4
200
What is the definition of absolute value?
The distance a number is from zero on the number line.
200
See Kurt's multiplication problem on Ms. Weinberg's clipboard. What did he do wrong?
He did not represent the mixed numbers as improper fractions before he multiplied.
200
Simplify the expression 2(3x – 8) .
6x - 16
300
Solve and Check: 7x - 9 = 26
x = 5
300
If n = 5, what is 3n + 2n?
25
300
|9| + |-4| =
13
300
See the problem on Ms. Weinberg's clipboard.
4/7
300
Which property is shown in the equation (3/5)(5/3) = 1
The inverse property of multiplication
400
Solve and Check: x/8 + 5 = 7
x = 16
400
If x = 3 and y = 2, what is 7y - (4 + x) + 2yx ?
12
400
|4 - 8| + 7 =
11
400
Represent the number on Ms. Weinberg's clipboard as a percent.
337.5%
400
Which property is shown in the equation (3/5)(5/5) = 1
The identity property of multiplication
500
Solve and Check: 4 + 12x = -44
x = -4
500
If k = 4, what is [(k^2 + 5) - 19]
1
500
|4 + (-5)| + -|8| =
-7
500
See the problem on Ms. Weinberg's clipboard.
see answer
500
Which property allows you to rewrite the equation 4 + 5x = 8 as 5x + 4 = 8?
The commutative property of addition