Question

In an auditorium, there are 9 rows of seats with 24 seats in each row. How many seats are there in the auditorium? Estimate first. Then check for reasonableness.

Answer 1

9 rows and 24 seats

9 is rounded to 10 and 24 is rounded to 20

Now multiply 10 x 20 = 200

So estimated answer: 200

But 9 x 24 = 216

So the correct answer is really 216

Hope this was helpful!

Answer 2

To find out do 24 x 9. Think about it like 24 seats in each row. In other words, 24+24+24+24+24+24+24+24+24.

24 x 9 = 216
There are 216 seats in the auditorium.

For the check for reasonableness part, it's 216 seats➗ 9 rows = 24 seats.