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Is decimal numbers considered integers?
No, because integers are whole numbers
What are the rules in adding decimal numbers?
If there are any numbers which are integers and so do not have a decimal point, then append one at the extreme right. Then arrange all the numbers in a column, with their decimal points aligned. Ad up the numbers ignoring the decimal points entirely. In the answer insert a decimal point under the column of decimal points.
How do you estimate decimal sums and differences?
The basic idea is the same as when you estimate sums and differences of larger numbers (which may or may not be integers). You round the numbers to one or two decimal digits, then add them up.
Who many decimal in a billions?
Billions are integers and so there will be no decimal points or digits after it.
Why is it important to add and subtract integers?
It is important to add and subtract integers: to get a new integer value in mathematics .
