Children today we are going to study about numbers in math. We cannot live without numbers. Can you imagine your life without numbers?
No!!!! In every sphere of life, where ever we go, whatever we do, numbers are central.
Let us see it through example: When we get up from bed, we check the time for reaching school, we need to take money to buy ticket for bus or train, and we need to count the books in the bag..... And so on. In fact our life revolves around the numbers (also read prime factorization).
We are going to learn about countable numbers.
All natural numbers starting from 1, 2, 3, up to ∞ are countable numbers. These numbers help us to count the objects.
Similarly if we start the series of numbers by 0, 1, 2, 3,…up to infinite ( ∞ ), then they are called whole numbers.
Every natural number and every whole number has a successor.
The meaning of successor here is the next number in the series. We can get the successor of math numbers (for more on numbers) by adding 1 to it.
Example: successor of 34 is 34 + 1 =35
Similarly every natural number except for ‘1’ has a predecessor and every whole number excluding 0 has a predecessor. Predecessor can be taken by subtracting 1 from the number.
As 1 is the smallest natural number and 0 is the smallest whole number so they do not have any predecessor.
e.g.: 45 - 1 =44. So 44 is the predecessor of 45.
All mathematical operators’ addition, subtraction, multiplication and division can be performed on both natural and whole numbers.
There exist a number zero (0) as the additive identity, which when added to any natural or whole number (also read about history of whole numbers), the result remains unchanged.
I.e. 345 + 0 = 345
In upcoming posts we will discuss about Whole numbers- read, write, count and Math Blog on Probability and Statistics. Visit our website for information on Andhra Pradesh model papers
No!!!! In every sphere of life, where ever we go, whatever we do, numbers are central.
Let us see it through example: When we get up from bed, we check the time for reaching school, we need to take money to buy ticket for bus or train, and we need to count the books in the bag..... And so on. In fact our life revolves around the numbers (also read prime factorization).
We are going to learn about countable numbers.
All natural numbers starting from 1, 2, 3, up to ∞ are countable numbers. These numbers help us to count the objects.
Similarly if we start the series of numbers by 0, 1, 2, 3,…up to infinite ( ∞ ), then they are called whole numbers.
Every natural number and every whole number has a successor.
The meaning of successor here is the next number in the series. We can get the successor of math numbers (for more on numbers) by adding 1 to it.
Example: successor of 34 is 34 + 1 =35
Similarly every natural number except for ‘1’ has a predecessor and every whole number excluding 0 has a predecessor. Predecessor can be taken by subtracting 1 from the number.
As 1 is the smallest natural number and 0 is the smallest whole number so they do not have any predecessor.
e.g.: 45 - 1 =44. So 44 is the predecessor of 45.
All mathematical operators’ addition, subtraction, multiplication and division can be performed on both natural and whole numbers.
There exist a number zero (0) as the additive identity, which when added to any natural or whole number (also read about history of whole numbers), the result remains unchanged.
I.e. 345 + 0 = 345
In upcoming posts we will discuss about Whole numbers- read, write, count and Math Blog on Probability and Statistics. Visit our website for information on Andhra Pradesh model papers
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