Math 7 Review SOL 7.1-3

Perfect Squares

100

What is the square root of 64?

8

200

Is 122 a perfect square?

No

300

The square root of a perfect square is considered a/an _________.

integer

400

The exponent tells you how many times to _________.

Multiply the base

500

There is a square with the area of 25 sq. ft. What would be the perimeter?

20

Powers of 10

100

What is 10²?

100

200

What is 0.001?

10^-3

300

What is 1/100?

10^-2

400

The exponent tells you how many times to __________.

Multiply the base

500

What is 10⁰?

1

Scientific Notation

100

What is the standard form of 3.2 x 10³?

3,200

200

What 520 in scientific notation?

5.2 x 10²

300

The exponent tells you how many times to ________.

Move the decimal

400

What is 3.67 x 10^-2 in standard notation?

0.0367

500

What is 0.0025 in scientific notation?

2.5 x 10^-3

Compare Rational Numbers

100

Which number is the greatest? 

2.4, 1/2, -30%, 9/3

9/3

200

Compare:

-1.25 _____ -125%

=

300

Compare:

1/2 ____ 3/8

>

400

True or False:

As a number becomes more negative, the number moves further away from zero.

True

500

Convert 5/6 to a decimal. Round to the nearest HUNDREDTHS!

0.83

Algebraic Expressions

100

2x + 3x

5x

200

3(x + 2) - 4

3x+2

300

5x-3+2x

7x-3

400

2x - 5(x+3)

-3x-15

500

If x=2, then what is 2x+3?

7