Question

To slove 7 9/10 + 5/10 Maria thought, “7 9/10 + 1/10 = 8 and 8 + 4/10 = 8 4/10”

Paul thought, “7 9/10 + 5/10 = 7 14/10 = 7 + 10/10 + 4/10 = 8 4/10” Explain why Maria and Paul are both right

Answer 1

Explanation:

First as per the given question,

`7 (9)/(10) + (5)/(10)`

`= (79)/(10) + (5)/(10)`

`= (84)/(10)`

`= 8 (4)/(10)`

= 8 4/10 (Solution)

Here,

As we look in Maria,

She used a method where first she separated then added and got the result same as the solution.

And,

As we look in Paul,

He also used a method where first he added then separated and got the result same as the solution.

As we see,

Both having same results as the solution irrespective of different methods so both are correct in their way.