April Exam Review

The Real Number System

100

2.567 is an example of a ____________ number.

What is a rational number?

200

The only difference between a natural number and a whole number is _____________.

What is zero?

300

Pi is a famous example of what type of number

What is an irrational number?

400

True or False.

All real numbers are rational numbers.

What is false?

Some real numbers are irrational numbers.

500

Integers, whole numbers, and natural numbers can not have a ____________.

What is a decimal?

Properties of Numbers

100

ab = ba

What is commutative property of multiplication?

200

(9 + 6) + 7 = 7 + (9 + 6)

What is commutative property of addition?

300

3 * 4 * x * y * 0 = 0

What is zero property of multiplication ?

400

a(b + c) = ab + ac

What is distributive property?

500

a + 0 = a

What is identity element of addition?

Absolute Value and Order of Operations

100

Simplify:  - |2 - 9|

What is -7?

200

Simplify: 4 - 2 |3² - 16|

What is -10?

300

Simplify:   2(-3) + 3 - 6[-2 - (-1 -3)]

What is -15?

400

Simplify: -6 + (-3 - 3)² ÷ |3|

What is 6?

500

Simplify: -4 - [2 + 4(-6) - 4 - |2² - 5(2)|]

What is 28?

Algebraic Expressions

100

Simplify: 3 - 9h - 2 + 7h

What is -2h +1?

200

Simplify: 6(-7 + 5y) - 9y

What is 21y - 42?

300

Simplify:  a² + (c - b³)   if a = -2, b = -1, and c = 3

What is 8?

400

Simplify:  -y³ + 7(x + z)²  if x = 2, y = -2, and z = 1

What is 71?

500

Simplify:  g + 2(y² * 3) - (-|v|) 

               if g = 6, v = -3, and y = -5

What is 159?

Polygons

100

The measure of an interior angle of a regular nonagon.

What is 140^o?

200

The sum of the measures of the exterior angle of a polygon.

What is 360^o?

300

The measure of one exterior angle of a regular decagon?

What is 36^o?

400

A quadrilateral has angle measures (2x - 15)^o, x^o,    (2x - 15)^o, and x^o. Solve for x.

What is 65?

500

The angles of a pentagon are x^o, (x - 5)^o, (x + 15)^o, (3x - 44)^o, and (x - 70)^o. Find x.

What is 92?