Page 46 - Math Course 2 (Book 1)

Introduction to Real Numbers

Mo. 2

Lesson 1

Whole number
KEY CONCEPTS:
1. Classify real numbers. are simply the numbers 0, 1, 2, 3, 4, 5, ... (and so on).
2. Graph real numbers.
3. Find square roots of real numbers.
4. Arrange in order real numbers. 1 2 3 4 5 6 7
No Fractions

MO. 2 - L1a Integers

integers are like whole numbers, but they also
Types of Real Numbers include negative numbers.

Vocabulary A-Z –3 –2 –1 –0 1 2 3

Let us learn some vocabulary No Fractions

Rational number
Positive number
a
numbers that can be expressed in the form — ,
values greater than 0, or positive numbers. where a and b are integers and b ≠ 0. b

1
–3 –2 –1 –0 1 2 3 –1.6 2.4
2
Positive Numbers
–3 –2 –1 –0 1 2 3

Negative number

values less than 0, or negative numbers.
Irrational numbers

–3 –2 –1 –0 1 2 3
numbers that cannot be expressed as terminating or
a
Negative Numbers repeating decimals, or in the form — , where a and b
b
are integers and b ≠ 0, are called irrational numbers.
Natural number

natural numbers are the ordinary counting numbers The number 4 is
1, 2, 3,... 4
irrational number 2
1

2
2

3

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