Properties of Real Numbers (Ch.2)

Vocabulary

100

The like terms in this expression are: 

-3x - 5 - 7x - 9

- 3x and - 7x, - 5 and - 9

200

Rational or irrational? 

0.3

Rational 

300

Rational or irrational? 

-15

Rational 

400

All the names for this number: -4

Real number, rational number, irrational number, integer, whole number? 

Real number, rational number, integer

500

Identify the like terms, coefficients, and constants in this expression: 

8 - 5x + 3 + 12x

like terms: 8 and 3, - 5x and 12 x 

coefficients: - 5, 12 

constants: 8, 3

 

Surprise Me

100

Simplify: 

3(x - 2) + 14

3x + 8

200

The sum of the absolute value of -28 and the opposite of -12 

40

300

(z - 4)(-z) 

-z² + 4z

400

Order from least to greatest: 

-5.2, -3/8, -6, 0.3, -1/4 

-6, -5.2, -3/8, -1/4, 0.3

500

Find the perimeter and area of a rectangle with sides lengths:  

9, 8-12w 

Perimeter: 34 - 24w

Area: 72- 108w

Adding & Subtracting Real Numbers

100

-11 + 3

-8

200

DOUBLE JEOPARDY! 

Place a bet, solve, and add or lose points!  

The temperature inside Mammoth Cave is about 12.2 degrees C year round. If the temperature outside the cave is -2.4 degrees C, what is the temperature change from outside to inside the cave? 

14.6 degrees C

300

The temperature change from -45 degrees to 62 degrees. 

107 degrees 

400

-12 3/4 + 6 9/10 

-5 17/20 

500

Evaluate: 

-1.7 + (-5.4)+ (-x); x = 2.4 

-9.5

Multiplying Real Numbers

100

-8(-11)

88

200

Use the distributive property: 

(s-9)9

9s- 81 

300

-3/4(2)(-6) 

9

400

Identify the property illustrated: 

 -143 x 1= -143

Identity property of multiplication 

500

-6r(-2.8r)

16.8r²

Dividing Real Numbers

100

The multiplication inverse of this number: 

-9

-1/9

200

15 divided by (-3/4)

-20

300

The multiplication inverse of this number: 

-4 1/3 

-3/13

400

The mean of these numbers: 

7, -4, 1, -9, -6

-2 1/5

500

Simplify: 

(5- 25q) divided by 10

1/2 - 5/2q