Word Problems with Rational Numbers

This video tutorial teaches how to solve real-world problems using rational numbers, focusing on decimals, fractions, and whole numbers. It emphasizes the importance of close reading and understanding the problem. The tutorial provides examples, such as calculating the average speed of a car and Gianna's savings, using both decimal and fraction methods. It guides viewers through creating solution statements and highlights key problem-solving steps.

What is a common misunderstanding when working with word problems?

• Using incorrect units

• Misreading the problem or misinterpreting the solution

• Not having enough information

• Using the wrong mathematical operation

What is the first step in solving the average speed problem?

• Finding the total time

• Finding the total distance

• Dividing the distance by the time

• Close reading the problem

What is the decimal equivalent of three and four-fifths hours?

• 3.5 hours

• 3.6 hours

• 3.8 hours

• 3.4 hours

What is the quotient when dividing 142.5 miles by 3.8 hours using the decimal method?

• 36.5

• 37.5

• 37.8

• 38.5

What is the first step in solving the average speed problem using fractions?

• Simplifying the fractions

• Multiplying the fractions

• Finding the reciprocal of the divisor

• Converting mixed numbers to improper fractions

What is the final simplified fraction for the average speed problem?

• 37 3/4

• 37 1/2

• 37 2/3

• 37 1/3

How much money did Gianna save initially?

• $35.50

• $20.50

• $25.50

• $30.50

What fraction of her money did Gianna spend on clothes?

• 1/3

• 1/2

• 3/4

• 2/3

What is the remaining amount of money Gianna has after spending on clothes?

• $9.50

• $9.00

• $8.50

• $8.00

What is the first step in solving real-world problems using rational numbers?

• Check the answer

• Close read the problem

• Calculate carefully

• Choose the correct operation