When adding decimal numbers, the decimal points should be lined-up.
Decimal addition is adding numbers that are represented in decimal form.
Adding decimal same as adding whole numbers
The answer to 6.14 plus 8.91 is 15.05. This is the result of adding the two numbers together, following the rules of addition for decimal numbers. When adding decimal numbers, align the decimal points and add the numbers as if they were whole numbers, then place the decimal point in the same position in the answer.
It can be same because it,s just the decimal
This is true for adding and subtracting ALL numbers, not just decimal representations.
This is effectively the same as lining up the decimal points when adding or subtracting ordinary decimal fractions.
Adding whole numbers is the addition of decimals where the decimal part is zero; in both cases the digits are place value aligned meaning that the decimal points, which lies between the units (or ones) and tenths columns, are aligned - in the whole number the decimal point is "hiding" at the end.
The main difference is that with whole numbers the decimal point is "hiding" (after the last digit of each whole number) whereas with decimal numbers it is clearly visible. In both cases the numbers are added with the decimal points aligned - with whole numbers there are no digits after the decimal points so the decimal points are not written, but if they were they would be visible after the last digit of the whole numbers and they would be automatically aligned; with decimal numbers there may be a different number of digits after each decimal point so it is up to the person doing the arithmetic to ensure the decimal points are aligned.
Because if you dont , your answer will be a whole number and that will make your answer wrong
Yes. Any integer can be transformed into a decimal number by adding a decimal point and then a zero after, for example: 3 = 3.0
Yes.