Interim I Review

What is substitution?

• Using GEMDAS to simplify.

• Replacing a variable with an equivalent value.

• Using SADMEG to solve.

• Solving for the variable.

When substituting, what do you always need to include?

How would you substitute given the following information?

Given 5x-6x²+2 when x=-3

• 5-3-6-3²+2

• 5(-3)-6-3²+2

• 5x-6x²+2=3

• 5(-3)-6(-3)²+2

Tags

CCSS.6.EE.A.2C

What order of operations do you use when simplifying?

• SADMEG

• Multiplication, division, addition, and subtraction.

• GEMDAS

• left to right.

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

What is the first step when simplifying the expression -6(3-2x)?

• Multiply 6 to all terms inside the parentheses.

• Multiply -6 to only 3.

• Multiply -6 to only 2x.

• Multiply -6 to all terms inside the parentheses.

Tags

CCSS.6.EE.A.3

What do like terms have in common?

• They have the same coefficients and variable raised to the same power.

• They have the same variable raised to the same power.

• They have the same coefficients raised to the same power.

• They have the same coefficients and same variable.

Tags

CCSS.6.EE.A.2B

Given the expression 5x²+3x+4x²-3+6, which of the following pairs are like terms? Select all that apply.

• 5x², 3x, and 4x²

• 5x² and 4x²

• -3 and 6

• All of them

Tags

CCSS.6.EE.A.2B

How do you solve an equation?

• Use inverse operations (SADMEG) to get the variable by itself.

• Use order of operations (GEMAS) to get the variable by itself.

• Substitute the variable in for a number that you think makes the equation true.

• Multiply, divide, add, and subtract.

Tags

CCSS.HSA.REI.A.1

What should be the first step when solving the following equation: 12x-3=5

• Divide 12 to both sides.

• Subtract 3 to both sides.

• Add 3 to both sides.

• Subtract 5 to both sides.

Tags

CCSS.7.EE.B.4A

Why do you have to use inverse operations on both sides of the equation?

• Because the teacher said so.

• To solve for the variable.

• To keep the equation balanced.

• Because it's the opposite of GEMDAS.

Tags

CCSS.6.EE.B.7