Answer:
If we add two numbers or more than two numbers then make ten strategy is a basic strategy to learn addition .
In this strategy we break the smaller number in terms to make the larger number equals to ten or tens .
For example :-
\(8+7=8+(2+5)=8+2+5=10+5=15\)
Now, the given addition problem is \(9+27\)
Here we break 9 to make 27 equals to 30 or 3 tens.
We can write, \(9=6+3\)
Such that \(9+27=(6+3)+27=6+3+27=6+(3+27)=6+30=36\)
hence, \(9+27=36\)
