Answer:
(8+2) and (9+1) is the most fastest adding pair.
Step-by-step explanation:
It is easy to add zero digit number here it will be
We can club the two number or we can club two pair so as to form 10 in each of the pair
It will be (8+2) which gives 10
And (9+1) which gives 10
And it will very easy and fast to add 10 + 10
Rather than any other pair.
