The video tutorial covers integer addition and subtraction, focusing on changing subtraction to adding the opposite. It explains how to calculate the distance between numbers on a number line and introduces the distance formula for rational numbers. A real-world problem involving elevation change is solved, and the concept of distance between negative and positive numbers is explored.

What is the first step in solving a string of integer addition and subtraction?

• Divide all numbers

• Multiply all numbers

• Change subtraction to addition of the opposite

• Add all numbers together

When grouping numbers, what should you do after changing subtraction to addition?

• Add all positive numbers together

• Add all negative numbers together

• Subtract all numbers

• Add all numbers together

What is the distance between -4 and 5 on a number line?

• 8 units

• 7 units

• 9 units

• 10 units

How many units apart are -5 and -3?

• 3 units

• 2 units

• 4 units

• 1 unit

What is the distance between 7 and -1?

• 8 units

• 7 units

• 6 units

• 9 units

What formula can be used to find the distance between two rational numbers?

• Difference of their squares

• Absolute value of their difference

• Product of the numbers

• Sum of the numbers

What is the absolute value of the difference between -3 and 2?

• 6

• 4

• 5

• 3

Why is distance always considered positive?

• Because it represents a physical space

• Because it is a mathematical rule

• Because it is easier to calculate

• Because it is a convention

What is the vertical distance between 200 feet below sea level and 580 feet above sea level?

• 880 feet

• 780 feet

• 980 feet

• 680 feet

Which pair of numbers has a distance of 12 between them?

• -8 and 4

• -9 and 3

• -10 and 2

• -11 and 1