Q1
What is the smallest natural number?
A1
B0
C-1
D2
ICSEClass 6 (ICSE)MathematicsCh 5 · Topic 2
Practice and Revision - Natural Numbers and Whole Numbers
Let us practise and revise what we learned about natural numbers and whole numbers. Natural numbers are counting numbers starting from 1, wh
Core concept
Natural numbers are 1, 2, 3, 4, and so on, used for counting objects and are the most basic type of numbers.
How it works
Whole numbers include 0 along with all natural numbers: 0, 1, 2, 3, 4, and so on.
Why it matters
Every natural number is a whole number, but not every whole number is a natural number (0 is not a natural number).
Key detail
Understanding natural and whole numbers helps build a foundation for more advanced number concepts like integers and fractions.
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Quick notes
• Natural numbers start from 1: 1, 2, 3...
• Whole numbers include 0: 0, 1, 2, 3...
• Natural numbers are used for counting.
• Every natural number is a whole number.
• 0 is a whole number but not a natural number.
• This distinction is important in maths.
• These numbers are basic building blocks.
• They lead to more advanced concepts like integers.