Estimation Strategies in Problem Solving

This video tutorial teaches how to estimate answers to word problems to check their reasonableness. It covers the steps to solve word problems, emphasizing the importance of estimation both before and after solving. Various estimation techniques are discussed, including rounding, clustering, and using friendly numbers. A practical example involving a carpet problem demonstrates how to apply these techniques in real-world scenarios.

Why is it important to estimate the answer to a word problem?

• To avoid solving the problem

• To make the problem more complex

• To check the reasonableness of the solution

• To get an exact answer

What should you do first when solving a word problem?

• Estimate the answer

• Read the problem

• Draw a picture

• Write an equation

Which strategy involves rounding numbers to the nearest whole number?

• Using friendly numbers

• Front-end estimation

• Clustering

• Rounding

What is a friendly number?

• A number that is a multiple of ten

• A number that is always odd

• A number that is always even

• A number that is easy to compute mentally

How do you estimate using front-end estimation?

• By rounding all numbers to the nearest ten

• By using only the highest place value

• By clustering similar numbers

• By using friendly numbers

Which estimation technique works best when numbers are close to each other?

• Front-end estimation

• Using friendly numbers

• Clustering

• Rounding

In the carpet cost example, what was the estimated area of the room?

• 300 square feet

• 275 square feet

• 250 square feet

• 200 square feet

What was the estimated cost per square foot for the carpet?

• $4

• $3

• $2

• $5

What is the purpose of using estimation after solving a problem?

• To avoid checking the solution

• To change the problem

• To verify the reasonableness of the obtained answer

• To find a new solution

What is the final step after solving a word problem?

• Estimate to check reasonableness

• Re-read the problem

• Write a new equation

• Draw a new picture