Question

the value of 10×[6+(-2)+8]​

Answer 1

10{6+(-2)+8}

10{6+6}

10x12

120

Answer 2

Answer:

Yes factoring out and and than reducing the fraction by is one way to deal with this question:

.

Now, is very close to and is very close to , hence .

Answer: B.

Or else you can notice that we need approximate value of a fraction. Now, is much, much, much bigger than . So subtracting from will be very close to , basically is negligible in this case. The same for for

and . So .

Hope it helps.