Question

Add the following:

$0.3+0.6$

Answer 1

The given decimals are already into like decimals.

So, arrange them according to place value,

$\mathrm{T}\mathrm{O}0.3+0.6$

Sum is,

$\mathrm{T}\mathrm{O}0.3+0.60.9$

Hence, the required answer is $0.9$.