Exploring Adding and Subtracting Integers

The video tutorial covers adding and subtracting integers. It begins with an introduction and setup instructions, followed by vocabulary definitions for integers, absolute value, and additive inverse. The lesson then explains the rules for adding integers, including examples and the concept of absolute value. Finally, it covers subtracting integers by adding the opposite, with examples and step-by-step instructions.

What is an integer?

• A positive or negative whole number, including zero

• A fraction

• A decimal

• A number with a decimal point

What is the absolute value of -5?

• -10

• 5

• 0

• -5

What is the additive inverse of 7?

• -7

• 14

• 7

• 0

What is the result of adding 3 and 5?

• -2

• 0

• 8

• 2

What is the result of adding -4 and -6?

• -10

• 10

• -2

• 2

If the signs are different, what do you do?

• Divide the numbers

• Multiply the numbers

• Subtract the numbers and keep the sign of the number with the larger absolute value

• Add the numbers and keep the sign

What is the result of 6 + (-3)?

• 9

• -9

• 3

• -3

What is the first step in subtracting integers?

• Add the numbers

• Change the subtraction sign to addition

• Change the second number to its opposite

• Keep the first number exactly how it is

What is the result of 5 - (-2)?

• 7

• 3

• -3

• -7

What is the result of -9 - 4?

• 5

• -5

• 13

• -13