Addition and Subtraction of Rational Numbers

The video tutorial explains Sam's walking plan and uses it to introduce the concept of adding and subtracting rational numbers. It covers the addition of positive and negative rational numbers, the concept of additive identity and inverse, and demonstrates these operations using a number line. The tutorial also provides examples and encourages viewers to practice these operations.

What is the total distance Sam walks from his house to the park?

• 3 kilometers

• 3.5 kilometers

• 4 kilometers

• 2.5 kilometers

How do you add two rational numbers with the same denominator?

• Add the numerators and keep the denominator

• Multiply the numerators

• Subtract the numerators

• Divide the numerators

What is the result of adding 3/2 and -7/2?

• -10/2

• -4/2

• 0

• 4/2

What is the additive inverse of a rational number?

• Its reciprocal

• Zero

• The same number

• Its negative

What happens when you add zero to a rational number?

• The number remains unchanged

• The number becomes negative

• The number becomes zero

• The number doubles

How do you subtract a rational number from another?

• Divide by its additive inverse

• Subtract its reciprocal

• Multiply by its reciprocal

• Add its additive inverse

What is the result of subtracting 1/2 from 5/2?

• 5/2

• 4/2

• 3/2

• 2/2

How do you add a positive number on a number line?

• Move to the right

• Move to the left

• Stay in place

• Move up

What is the result of adding 3/4 and 2/4 on a number line?

• 3/4

• 5/4

• 2/4

• 1/4

What is the result of adding 7/3 and -2/3?

• 0

• 3/3

• 9/3

• 5/3