Jill watched 72 minutes of a movie that is 149 minutes long.

Question

What is the estimated number of minutes left if both numbers are rounded to the tens place? ____

What is the actual number of minutes left? ___

Answer 1

First, let's round both numbers to the nearest ten.

• Jill watched 72 minutes, which rounds to 70 minutes.
• The movie is 149 minutes long, which rounds to 150 minutes.

Now, to estimate the number of minutes left in the movie:

Estimated minutes left = Rounded movie length - Rounded minutes watched
= 150 minutes - 70 minutes
= 80 minutes.

So, the estimated number of minutes left is 80 minutes.

Now, let's find the actual number of minutes left.

Actual minutes left = Total movie length - Minutes watched
= 149 minutes - 72 minutes
= 77 minutes.

Thus, the actual number of minutes left is 77 minutes.

To summarize:

• Estimated minutes left: 80 minutes
• Actual minutes left: 77 minutes