Estimating the Reasonableness of Answers to Word Problems with Mixed Numbers

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