Question

There are 32 chairs in each classroom, what is the total number of chairs in 2 classrooms?

Answer 1

Because there is 32 chairs in one classroom, we can just add 32 two times.
32+32=64
There are 64 chairs in two classrooms.

Answer 2

32
*2
---
2*2=4
30*2=60

there are 64 chairs in two classrooms