Review of Real Number System

• Real numbers

• Representation of sets

• Set notation

• Interval notation

​

​Secondary 3

Math ​Review

Multiple Choice

Which of the following belong to the set ] -3.5, 8[

• -3.5

• 5

• 3.15

• 8

Some text here about the topic of discussion

Some text here about the topic of discussion

​[13, 19]

Some text here about the topic of discussion

​[13, 19]

624

Some text here about the topic of discussion

​[13, 19]

624

​[229,624]

Set of Real Numbers

​Natural Numbers (N)

Some text here about the topic of discussion

Multiple Choice

$$200\in N$$

• YES

• NO

Multiple Choice

$$0\in N$$

• YES

• NO

Multiple Choice

$$0\in N$$

• YES

• NO

​Set of Real Numbers

​Whole Numbers (W)

Some text here about the topic of discussion

Multiple Choice

$$N\subseteq W$$

• YES

• NO

Multiple Choice

$$-20\ \in W$$  

• YES

• NO 

​Set of Real Numbers

​Integers (Z)

Some text here about the topic of discussion

Multiple Choice

$$0\in Z$$

• YES

• NO

Multiple Choice

Which of the following is true about integers?

• $$\frac{1}{2}\in Z$$

• $$N\ \subseteq Z$$

• $$Z\subseteq N$$

• $$-15\notin Z$$

​Set of Real Numbers

​Rational Numbers (Q)

Some text here about the topic of discussion

Multiple Choice

$$\frac{2}{7}\in Q$$

• YES

• NO

Multiple Choice

Which of the following is true about rational numbers?

• $$\pi\ \in\ R$$

• $$\frac{12}{0}\in Q_+$$

• $$N\ \subseteq Q$$

• $$R\ \subseteq Q$$

​Set of Real Numbers

​Irrational Numbers (Q')

Any number in the set of real numbers that are not rational. These numbers are non-repeating, non-ending decimals. The square root of all non squares are not included.

​​

​

Some text here about the topic of discussion

Multiple Choice

All rational numbers are irational numbers.

• true

• false

Multiple Choice

Which of the following is and element of irrational number

• $$\sqrt[]{64}$$   

• $$\sqrt[3]{91}$$  

Multiple Choice

- 1/2 belong to what set ?

• [1, 3]

• ]1,2]

• [-1, 1[

• [0, -1[

Multiple Choice

Which of the following does not belong to the set defined by the interval [5/2, 7.5]

• 2

• 5

• 3.75

• 6.2