No.001 Positive & Negative Numbers | Integers & Natural Numbers
POINT
Positive numbers are greater than 0, negative numbers are less than 0, and 0 is neither positive nor negative. In this lesson, natural numbers mean 1, 2, 3, … .
Example
From the following numbers, choose the positive numbers, negative numbers, integers, and natural numbers.
\(+2,\quad +3.5,\quad 0,\quad -\frac{1}{4},\quad 7,\quad -5\)
① Positive numbers
② Negative numbers
③ Integers
④ Natural numbers
② Negative numbers
③ Integers
④ Natural numbers
① \(+2,\ +3.5,\ 7\)
② \(- rac{1}{4},\ -5\)
③ \(+2,\ 0,\ 7,\ -5\)
④ \(2,\ 7\)
② \(- rac{1}{4},\ -5\)
③ \(+2,\ 0,\ 7,\ -5\)
④ \(2,\ 7\)
Try it yourself.
For each set, choose the positive numbers, negative numbers, integers, and natural numbers.
PRACTICE 01
\(+4,\quad -2,\quad 0,\quad 1.5,\quad -\frac{3}{4},\quad 9\)
1. Positive numbers 2. Negative numbers 3. Integers 4. Natural numbers
1. \(+4,\ 1.5,\ 9\)
2. \(-2,\ -\frac{3}{4}\)
3. \(+4,\ -2,\ 0,\ 9\)
4. \(4,\ 9\)
2. \(-2,\ -\frac{3}{4}\)
3. \(+4,\ -2,\ 0,\ 9\)
4. \(4,\ 9\)
PRACTICE 02
\(-7,\quad +\frac{1}{2},\quad 3,\quad 0,\quad -2.4,\quad 12\)
1. Positive numbers 2. Negative numbers 3. Integers 4. Natural numbers
1. \(+\frac{1}{2},\ 3,\ 12\)
2. \(-7,\ -2.4\)
3. \(-7,\ 3,\ 0,\ 12\)
4. \(3,\ 12\)
2. \(-7,\ -2.4\)
3. \(-7,\ 3,\ 0,\ 12\)
4. \(3,\ 12\)
PRACTICE 03
\(5.2,\quad -1,\quad 0,\quad +8,\quad -3.5,\quad \frac{2}{3}\)
1. Positive numbers 2. Negative numbers 3. Integers 4. Natural numbers
1. \(5.2,\ +8,\ \frac{2}{3}\)
2. \(-1,\ -3.5\)
3. \(-1,\ 0,\ +8\)
4. \(8\)
2. \(-1,\ -3.5\)
3. \(-1,\ 0,\ +8\)
4. \(8\)