Chapter 1 Pre-Algebra Test Review

Converting Fractions and Decimals

100

Convert to a Decimal.

3/4

.75

200

Convert to a Fraction.

.875

7/8

300

Convert to a Decimal.

3 1/4

3.25

400

Convert to a fraction.

-5.8

-5 4/5

500

Convert to Decimal.

1/3

.3333333 (repeating)

Roots

100

sqrt(49)

7

200

-sqrt(25)

-5

300

pm (sqrt121)

pm11

400

h³=64

h = 4

500

x²=225

pm15

Exponents

100

x*x*x*x

x⁴

200

Evaluate.

5^-3

1/125

300

Write with positive exponents.

x^-6

1/x^6

400

Write with positive exponents.

3x^-4y²

(3y^2)/x^4

500

Write with positive exponents.

((2*x^3)^0)/(xy)

1/(xy)

Scientific Notation

100

Write in Scientific Notation.

345,000

3.45 x 10⁵

200

Write in Scientific Notation.

.00562

5.62 x 10^-3

300

Write in Standard Notation.

4.5 x 10⁶

4,500,000

400

Write in Standard Notation.

4.89 x 10^-2

.0489

500

What are three things to remember about scientific notation?

- Sci mode on calculator

-Big numbers = positive exponents

-Small numbers = negative exponents

-Single digit in front

The Real Number System

100

Classify.

sqrt2

Irrational

200

Classify.

-5

Integer

Rational

300

Classify.

2

Natural Number

Whole Number

Integer

Rational Number

400

Classify  

sqrt25

Natural

Whole

Integer

Rational

500

Classify.

- (root 3 8)

Integer

Rational