Unit 1 - Real Number System - NHP 2020

Which of the following numbers is an irrational number?

• 5.38

• 0.63636363...

• $\frac{\pi}{2}$

• -5

The statement. (7 + 5) + 2 = 7 + (5 + 2) is an example of which property?

• Associative property of Addition

• Commutative Property of Multiplication

• Identity Property of Multiplication

• Multiplicative Inverse Property

Which statement best illustrates the additive identity property?

• 6 + 0 = 6

• 6 + 2 = 2 + 6

• 6(2) = 2(6)

• 6 + (-6) = 0

Which set lists the natural numbers?

• {0, 1, 2, 3, 4, ...}

• { ... -3, -2, -1, 0, 1, 2, 3, ...}

• {1, 2, 3, 4, ...}

• {2, 4, 6, 8, ...}

What is the multiplicative inverse of 5?

• 6

• $\frac{1}{5}$

• 1

• -5

What is the additive inverse of 5?

• 5

• $\frac{1}{5}$

• 1

• -5

Which statement is not always true?

• The sum of two rational numbers is rational.

• The product of two irrational numbers is irrational.

• The sum of a rational and an irrational number is irrational.

• The product of two rational numbers is rational.

• L + M

• M + N

• N + P

• P + L

Simplify the following expression using the order of operations.
 $8\ \div\ 2^3\ +\ 7\ \left(-4\ -\ 3\right)$  

• 15

• 50

• 113

• -48

• -10

• -2

• 10

• 2