Unit 1 Review

opposite #'s

100

What is the opposite of negative 12?

12

200

What is the opposite of 15?

-15

300

Allie played a new video game and scored 12 points.  On the next round she lost 6 points.  What is the total number of points she won after the 2 rounds?

6 points

400

What is an integer?

positive, negative whole numbers and zero.

500

Kristen goes on a cave tour with her family.  They climb down 8 meters below ground level. Then, they climb the opposite of -8 to return to ground level.  What is the total number of meters they climbed in either direction?

16 meters

absolute value

100

What is the absolute value of |-20|

20

200

What is the absolute value of |350|

350

300

What is the absolute value of -|-9|

-9

400

Can absolute value ever be a negative number?

no

500

What does absolute value mean?

The distance a number is from zero.

exponents

100

In 5^{3 What number is the base?}

5

200

What is 3⁴ in expanded form?

3x3x3x3

300

What is 4² standard from?

16

400

Solve:

5^{2 +} 2^{3 =}

33

500

Any number to the zero power is always equal to what?   example 3⁰

1

PEMDAS

100

What does the E stand for in PEMDAS?

exponents

200

In order of operations what do you do first? subtract or multiply?

multiply

300

6+3*5

21

400

6-4+8*2

18

500

8-2² + (2*5)

14

Decimal place value

100

In the number 24.3 what place is the 4 in?

ones

200

In the number 75.0035 What number is in the hundredth's place?

zero

300

What is the place value of the digit 2 in this number?

16.752

2 thousandth's

400

How would you write this number as a fraction?

.5

5/10

500

How would you write this number as a fraction?

       6.25

   6  25/100