Answer:
To find the total number of seats in the concert hall, we need to multiply the number of seats in each row by the number of rows.
Given that there are 15 seats in a row and 12 rows, we can calculate the total number of seats by multiplying these two numbers together:
15 seats/row × 12 rows = 180 seats
Therefore, there are 180 seats in the concert hall.
To find the total number of seats in the concert hall, we need to multiply the number of seats in each row by the number of rows. In this case, there are 15 seats in a row and 12 rows.
The operation to be used is multiplication.
The number sentence for this problem would be: 15 seats/row × 12 rows = total number of seats.
Therefore, the number sentence to find the total number of seats is 15 × 12 = total number of seats.