How to Add Decimals and Whole Numbers?


Whole numbers can be defined as numbers used for counting. On the other hand we have decimal numbers which have two parts: First part is whole number and second part is decimal part. Difference between decimal part and whole part is of place value.


Here we will show to add decimals and Whole Numbers. In order to add the decimals and the whole numbers, we will first place the decimal point after the whole number and write 0 (zero) as the decimal part of whole number. So we will observe that both numbers appear as decimal numbers now.

Further we will put the whole part of both numbers one below another and similarly we place the decimal part of both the numbers one below another. In next step, we will add up the decimal part of two numbers and ensure that number of digits of decimal part remains same as decimal digits of addends. If digits exceed, it will be carried over to the whole number and will be added with unit place of two parts of two whole numbers.


Let's us look at following examples:

To add 123.45 with 68,

Here we will first write 68, which is a whole number can be written as decimal number by simply writing it as 68.00.

Now we will proceed as follows:




So, on adding we observe that decimal part of two numbers are added up and as decimal part of whole number is always 00, so we observe that decimal part is always same and we will only add the whole numbers of two given numbers to get the result.

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