The video tutorial covers the classification of real numbers, including integers, rational, and irrational numbers. It explains how to identify subsets of real numbers and apply them to real-world situations. The tutorial also demonstrates set operations like intersection and union, and discusses closure properties of number sets, providing examples and counterexamples.

Which of the following is NOT a subset of real numbers?

• Irrational numbers

• Whole numbers

• Rational numbers

• Complex numbers

What type of number is -73?

• Counting number

• Whole number

• Integer

• Irrational number

Which subset does the fraction 5/9 belong to?

• Rational number

• Whole number

• Integer

• Irrational number

What type of number is 18π?

• Rational number

• Irrational number

• Whole number

• Integer

Which set of numbers best describes the number of people on a bus?

• Whole numbers

• Rational numbers

• Irrational numbers

• Real numbers

What set of numbers best describes the area of a circular platform?

• Whole numbers

• Rational numbers

• Irrational numbers

• Integers

Which set of numbers best describes the value of coins in a purse?

• Integers

• Whole numbers

• Rational numbers

• Irrational numbers

What is the intersection of sets C and D if C = {4, 8, 12, 16, 20} and D = {5, 10, 15, 20}?

• {}

• {20}

• {5, 10, 15, 20}

• {4, 8, 12, 16, 20}

What is the union of sets C and D if C = {6, 7, 12, 14, 18, 24} and D = {21, 28}?

• {6, 7, 12, 14, 18, 24, 21, 28}

• {6, 7, 12, 14, 18, 24}

• {21, 28}

• {}

Is the set of whole numbers closed under multiplication?

• No

• Yes

• Sometimes

• Depends on the numbers

Tags

CCSS.5.NF.B.5B