Decimal place value is a number place of decimal digit in any number. Now we need to know what is “Decimal”. In number place value we determine whole number’s place that means only digits 0-9 can be used in number place, but what if there is some value between whole numbers 1 and 2, then here comes “Decimal place value” concept because decimal place value works on the parts of numbers. The parts are also called “Fraction” . For example, If I have 4 apples then I can use Number place value for counting them, but if I have 3 parts of one apple then I will use Decimal place value.
How I can count parts using Decimal place value? Just like in Number place value, the number are counted from right to left, in Decimal place value numbers are counted from left to right. But there is one question arise that how can I differentiate that what is number place value and what is decimal place value just like below image:
To differentiate between Number place value and Decimal place value we use a separator (.), which is called Decimal point and it locates between number place and decimal place values. So the left hand side numbers of decimal points are number place value and the right hand side numbers of decimal points are decimal place value. Also in number place value when we move towards right to left the values of digits are 10 times bigger than its right side digit and similarly when we move towards left to right the values of digits are 10 times lesser than its left hand side digit, just as below image:
To understand decimal place let take one example that suppose we have 1 Pizza and if we divide that pizza in 10 parts and we take 4 pieces of pizza then those 4 pieces are called 4-10th parts of that pizza because we divided pizza in 10 parts. We will represent it by 4/10 fraction.
For example in number 347.8, .8 is 8-10th parts of that number so we will call this place “Tenth” place of this number. For example in number 593.21, “1” is 1-100th part of that number so we will call this place “Hundredth” place.
Below image shows the structure of Decimal place value:
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