Are you smarter than a 6th Grader?

Expressions

100

Evaluate: x + 2

If x=4

6

200

Evaluate: 9x

If x=12

108

300

Evaluate: 2x+4c

If x=3 and c=5

26

400

Name the coefficient, constant, and variable of the problem: 

5x²+3c+6

Coefficient: 5 and 3

Constant: 6

Variable: x and c

500

Evaluate: x⁴+3c+10

If x=4 and c=2

80

Properties

100

Name the property: 

3(5 + 6)= (3 x 5) + (3 x 6)

Distributive Property

200

What property allows you to change the order in addition and multiplication without changing the sum?

Commutative Property

300

Name the property:

8a+7b+(9c+10)=(8a+7b)+9c+10

Associative Property

400

Is the equation below true? If so, what property allows the order to change?

10-7=7-10

No, it is not true. You can not use commutative property on subtraction. It only works for addition and multiplication.

500

What property is described below? 

"Anything plus zero equals itself and anything multiplied by one equals itself."

Identity Property

Order of Operations

100

What is the order of operations?

 

Parentheses

Exponents

Multiply/Divide

Add/Subtract

200

Evaluate: 3²+2

*Must write each step using order of operations*

11

300

Below is the work that Jordyn completed for question #5 on his test. Is Jordyn correct? Explain your answer.

10 ÷ 5 x 2 + 4

10 ÷ 10 + 4

1 + 4

5

Jordyn is incorrect. She completed multiplication first when she should have divide first. 

Correct work:

10 ÷ 5 x 2 + 4

2 x 2 + 4

8

400

Evaluate: (3² x 2)-10

*Must write each step using order of operations*

8

500

Evaluate:

(18 ÷ 6 x 5)-14 ÷ 7

(18 ÷ 6 x 5)-14 ÷ 7

(3 x 5)-14 ÷ 7

15-14 ÷ 7

15-2

13

Solving One-Step Equations

100

Solve: 

x+3=18

*Must show steps*

x=15

200

What is the operation that you will use to get rid of the 7?

x-7=21

Addition, because it is the inverse of subtraction.

300

Solve: 

x-21=48

*Must show steps*

x=69

400

Solve:

5-x=2

*Must show steps that get rid of the negative variable*

x=3

500

Solve:

2x+4=10

*Must show steps*

Hint (1): Subtract 4 first from both side

Hint (2): Remember that anything near a variable means multiplication. (do the inverse of multiplication)

x=3

Clueless

100

Label the base and exponent:

x⁶

Base: x

Exponent: 6

200

Evaluate: .54 + .6

.54 + .6=1.14

300

Evaluate: 318 ÷ 3

318 ÷ 6=106

400

How many pints are in a gallon?

8 pints=1 gallon

500

What is the mean, mode, median, and range?

Mean-average

Mode-Most

Median-Middle

Range- Highest number subtract the lowest number