Subtraction of Rational Numbers in Real World (Part 1)

The video tutorial explains how to measure changes in snow height over three days, with specific changes on Monday, Tuesday, and Wednesday. It focuses on calculating the difference between changes on Monday and Tuesday by converting a subtraction problem into an addition problem. The tutorial demonstrates how to add rational numbers by finding a common denominator, resulting in a final difference of 1 and 29/40 feet.

On which day did the snow height increase?

• Tuesday

• Monday

• Wednesday

• Thursday

What does a negative change in snow height indicate?

• No change

• Snow melting

• Snowfall

• Temperature increase

What mathematical operation is used to find the difference between two values?

• Multiplication

• Subtraction

• Division

• Addition

How is the subtraction of a negative number converted for easier calculation?

• By changing it to subtraction

• By changing it to addition

• By changing it to multiplication

• By changing it to division

What is the common denominator used to add 1 and 1/10 and 5/8?

• 10

• 20

• 30

• 40