The video tutorial teaches how to estimate the reasonableness of answers to word problems involving mixed numbers by using models. It covers two main problems: one involving candy bars and another about sunflower growth. The tutorial emphasizes calculating, estimating, and comparing answers to ensure they are logical and reasonable.

What is a mixed number?

• A number with only a whole number

• A number with a whole number and a fraction

• A number with only a fraction

• A number with two fractions

Why is it important to have a common denominator when subtracting fractions?

• To convert fractions to whole numbers

• To ensure accurate subtraction

• To simplify the fractions

• To make the fractions larger

What is the estimated result of subtracting 1 1/6 from 2 1/3?

• 1

• 1 1/2

• 1 1/3

• 1 1/4

What is a common mistake when solving problems with mixed numbers?

• Multiplying instead of dividing

• Dividing instead of multiplying

• Adding instead of subtracting

• Subtracting instead of adding

Why is it unreasonable to end up with more candy than you started with when giving some away?

• Because the numbers were rounded

• Because fractions were involved

• Because it defies logic

• Because subtraction was used

What is the estimated total height of the flowers grown by Lewis and Mary?

• 7 1/2 feet

• 7 feet

• 6 feet

• 6 1/4 feet

How do you verify the reasonableness of an answer in word problems?

• By asking a friend

• By using a calculator

• By comparing the answer to an estimate

• By checking the calculations only