Whole Numbers
The whole numbers are the counting numbers including zero. They are a part of real numbers that do not include fractions, decimals, or negative numbers. Counting numbers are also considered as whole numbers.
The set of whole numbers is denoted by the symbol W: W = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, …}
The smallest whole number is 0. The first 100 whole numbers are 0 to 99.
Q1. Identifying Whole Numbers:
Write whether each of the following numbers is a whole number or not.
a) 25.6: ________________
b) -10: ________________
c) 0: ________________
d) 7: ________________
e) -3.2: ________________
Q2. Number Ordering:
Arrange the following numbers in ascending order.
17, -5, 0, 9, -2, 13
Q3. Prime or Composite:
Identify whether the following numbers are prime or composite.
a) 7: ________________
b) 12: ________________
c) 19: ________________
d) 4: ________________
Answers:
Q1- a) Not a whole number, b) Whole number, c) Whole number, d) Whole number, e) Not a whole number
Q2 -5, -2, 0, 9, 13, 17
Q3 a) Prime, b) Composite, c) Prime, d) Composite
What is a whole number?
A whole number is any number that’s not a fraction or a decimal. These numbers are a subset of the integers, and they’re used to count things. Here are some examples of whole numbers: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and so on.
Which is the smallest whole number?
The smallest whole number is zero! The number zero is considered a whole number because it doesn’t have any fractional or decimal parts. It’s the starting point for all whole numbers.
Every natural number is a whole number?
Every natural number is a whole number. Natural numbers are all the positive integers, starting with 1 and going up (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and so on). Whole numbers include all the natural numbers plus zero.
Every rational number is a whole number?
Not every rational number is a whole number. A rational number is any number that can be written as a fraction, like ½ or 3/4. But not all rational numbers are whole numbers, because whole numbers are integers and they have to be positive, negative, or zero (not fractions).
All natural numbers are whole numbers?
Every natural number is a whole number. Natural numbers are just the positive integers starting at 1 (1, 2, 3, 4, and so on), and whole numbers are natural numbers plus zero.
Every integer is a whole number?
No, not every integer is a whole number.
