Understanding Integer Operations

The video tutorial explains how to evaluate expressions involving addition and subtraction, focusing on the order of operations. It uses examples to demonstrate how to handle negative numbers and apply integer rules, such as determining absolute values and subtracting smaller values from larger ones. The tutorial emphasizes understanding the concept through real-world analogies, like financial gains and losses, to make the learning process relatable and intuitive.

What is the correct order of operations when dealing with addition and subtraction?

• Subtract first, then add

• Add first, then subtract

• Perform operations from right to left

• Perform operations from left to right

When evaluating -32 + 8, what is the result?

• Negative 40

• Positive 40

• Negative 24

• Positive 24

How do you handle subtracting a negative number, such as -(-39)?

• It becomes an addition of a negative number

• It becomes an addition of a positive number

• It remains a subtraction of a negative number

• It becomes a subtraction of a positive number

What is the result of the expression -32 + 8 - (-39)?

• Negative 63

• Positive 15

• Negative 15

• Positive 63

In the expression -26 - (-5), what is the equivalent expression?

• -26 + (-5)

• -26 - 5

• -26 + 5

• -26 + 0

What is the result of -26 + 5?

• Negative 21

• Positive 31

• Positive 21

• Negative 31

What is the final result of the expression -26 + 5 + 7?

• Positive 18

• Negative 18

• Positive 14

• Negative 14

When adding integers with different signs, what is the first step?

• Multiply the absolute values

• Subtract the smaller absolute value from the larger

• Divide the absolute values

• Add the absolute values

In the expression -21 + 7, which number determines the sign of the result?

• The number with the smaller absolute value

• The number with the larger absolute value

• The first number in the expression

• The last number in the expression

What is the absolute value of -21?

• 21

• -21

• 7

• 0