Question

Sally add 9 to 27. explain how she can use the make 10 strategy to solve the problem.

Answer 1

The answer is 36 what is the make 10 strategy

Answer 2

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, $9+27=36$