Question

According to rounding rules for addition, the sum of 27.1, 34.538, and 37.68 is ____.

Answer 1

Answer:

According to rounding rules for addition, the sum of 27.1, 34.538, and 37.68 is

$27.1+34.538+37.68=99.318$

We can give two answers here as its not mentioned how much to be rounded off.

According to the rule, if the digit to be rounded is less than 5, then we do not change the "rounding digit" but change all digits to the right of the "rounding digit" to zero.

So, this sum will be rounded to 100, if it has to be rounded in nearest whole number as per rule.

Otherwise, we can also round up to tenth place to 99.3

If the hundredth place is 5 or greater than 5 then we increase the tenth place by 1.

Here, the hundredth place is 1, so no changes to the tenth place is applied.

Answer 2

We are given with three values and is asked in the problem to determine the sum of the three values. Using a calculator, the significant figures should be equal to 5, the answer is equal to 99.318. One can also use manual addition to verify the answer