Question

subtraction just an extension of addition​

Answer 1

Answer:

Rule of addition and subtraction " the result cannot have more digits to the right of the decimal point than either of the original numbers."

For example: if we add 6.65+0.895= 7.545

and if we do subtract 2.5-0.48= 2.02

Meaning to say that if we are adding or subtracting we can't put more digits after the original no. if 2.02 is the answer we can't extend it to make it a 4 or 5 significant figure if it is 2.02 then it will be 2.02 only