Estimating Solutions to Multistep Story Problems

The video tutorial teaches how to estimate solutions to multistep story problems by rounding numbers. It begins with an introduction to estimation and rounding, followed by a detailed explanation of rounding using number lines and benchmarks. The tutorial then applies these concepts to a story problem involving a soda can drive, demonstrating how to round numbers to the nearest ten or hundred. The video concludes with a final calculation, showing how to estimate the total number of cans collected after accounting for unusable cans.

What is the midpoint when rounding the number 18 to the nearest ten?

• 18

• 20

• 15

• 10

In the soda can drive example, what is the rounded number of cans collected by the 2nd grade?

• 400

• 350

• 300

• 450

How many cans did the 3rd grade collect after rounding?

• 400

• 450

• 500

• 300

What is the rounded number of unusable cans in the example?

• 15

• 10

• 20

• 18

After rounding and subtracting unusable cans, what is the estimated total number of cans collected?

• 790

• 780

• 770

• 760