10(0.75+1.2)=
First, let's solve what's in the parentheses vertically.
Let's remember that:
We'll make sure to write the exercise correctly.
Note that the decimal point is in place and ones are under ones, tens under tens, etc.
And we'll get the result:
Now we have the exercise:
This exercise doesn't require calculation, but rather moving the decimal point "one step" to the right, since we are multiplying by ten.
In other words, if we move the decimal point to the right we'll get: