Evaluating Expressions with Integers

The video tutorial explains the order of operations, known as PEMDAS, which stands for parentheses, exponents, multiplication, division, addition, and subtraction. The lesson demonstrates how to apply PEMDAS to evaluate expressions with integers. It provides a step-by-step example, starting with operations inside parentheses, followed by multiplication, and finally subtraction. The tutorial emphasizes rewriting expressions to avoid confusion and using strategies like 'same change opposite' for subtraction. The lesson concludes with a summary of the key points covered.

What does the acronym PEMDAS stand for?

• Parentheses, Exponents, Division, Multiplication, Addition, Subtraction

• Parentheses, Exponents, Multiplication, Division, Addition, Subtraction

• Parentheses, Multiplication, Exponents, Division, Addition, Subtraction

• Parentheses, Exponents, Multiplication, Division, Subtraction, Addition

In the expression 2 plus negative 5, what is the result after applying the first step of PEMDAS?

• Negative 7

• Positive 7

• Negative 3

• Positive 3

Which operation should be performed first in the expression: negative 3 minus negative 3 times negative 4?

• Subtraction

• Division

• Multiplication

• Addition

What is the product of negative 3 and negative 4?

• Negative 12

• Positive 12

• Positive 7

• Negative 7

After rewriting the subtraction expression as an addition one, what is the final result of negative 3 minus 12?

• Negative 9

• Negative 15

• Positive 9

• Positive 15