Question

something explain about knowing our numbers

Answer 1

What are Natural numbers?

Counting numbers 1, 2, 3, 4, ...... etc. are called Natural numbers. The smallest natural number is 1 and there is no largest natural number.
 

Digits and Place value

Numbers are formed using the ten symbols 0, 1, 2, 3, 4,  5, 6, 7, 8, 9. These symbols are called digits or figures.
To find the place value of a digit in a number, multiply the digit with the value of the place it occupies.
 

Comparison of Numbers

We often need to compare the two or more numbers. Here are some of the ways it can be performed easily
1) If two numbers have unequal number of digits, then the number with the greater number of digits is greater.
2) If two numbers have equal number of digits then, the number with greater valued digit on the extreme left is greater. If the digits on extreme left of the numbers are equal then the digits to the right of the extreme left digits are compared and so on.

The arrangements of numbers from the smallest to the greatest is called ascending order.
The arrangement of numbers from the greatest to the smallest is called descending order.

PLACE VALUE OF DIGIT
Values of the places in the Indian system of numeration are Ones, Tens, Hundreds, Thousands, Ten thousands, Lakhs, Ten Lakhs, Crores and so on.

Estimation of the Numbers

A reasonable guess of the actual value is called an estimate.

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