pencils come in packages of 24. The teacher needs 80 pencils for a test. How many packages will he need to purchase?

80/24 = 3 1/3 boxes

However, he can't buy 1/3 of a box -- so he should purchase 4 boxes.

Divide 24 into 80 to give you the number of packages. You will need to round up to get the correct answer. There will be more than 80 pencils, but the teacher will have to buy that number of packages to be sure to have enough.

To determine the number of packages the teacher needs to purchase, we can divide the total number of pencils required by the number of pencils in each package.

In this case, there are 24 pencils in each package and the teacher needs a total of 80 pencils.

So, we divide 80 by 24:

80 ÷ 24 = 3.33

Since we can't have a fraction of a package, we need to round up to the nearest whole number. This means the teacher needs to purchase at least 4 packages of pencils in order to have enough for the test.