Estimating Percentages and Benchmarks

The video tutorial explains how to estimate percentage amounts using diagrams and benchmarks. It covers the process of rounding numbers and using equivalent fractions to simplify calculations. The tutorial includes practice problems to demonstrate estimation techniques and encourages viewers to practice these skills to build confidence. The video concludes with a reminder of the importance of estimation in verifying solutions.

What is the estimated percentage of a shaded area if 2 out of 4 parts are shaded?

• 25%

• 100%

• 50%

• 75%

What is the estimated percentage of a shaded area if 1 out of 2 parts are shaded?

• 75%

• 50%

• 100%

• 25%

If 1 out of 4 parts is shaded, what is the equivalent percentage?

• 10%

• 20%

• 30%

• 25%

How much of the grid is shaded if it looks like a column of ten and a row of ten?

• 50%

• 80%

• 20%

• 10%

What is the estimated percentage if 3 out of 4 parts are shaded?

• 75%

• 100%

• 50%

• 25%

What is the estimated percentage if 1 out of 3 parts are shaded?

• 40%

• 35%

• 33%

• 30%

What is the estimated percentage if 2 out of 5 parts are shaded?

• 30%

• 40%

• 50%

• 60%

What is the estimated percentage if 3 out of 5 parts are shaded?

• 55%

• 65%

• 50%

• 60%

What is the estimated percentage if 4 out of 5 parts are shaded?

• 75%

• 80%

• 70%

• 85%

What is the estimated percentage if 5 out of 5 parts are shaded?

• 90%

• 105%

• 95%

• 100%