Evaluating Expressions: Key Concepts and Techniques

Why is it important to follow the order of operations when evaluating expressions?

• To avoid using a calculator

• To make the problems easier

• To ensure consistency in solving problems

• To reduce the number of steps

What does the acronym 'PEMDAS' stand for?

• Parentheses, Exponents, Multiplication, Division, Addition, Simplification

• Parentheses, Exponents, Multiplication, Division, Algebra, Simplification

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

• Parentheses, Exponents, Multiplication, Division, Algebra, Subtraction

In the expression 6^2, what is the value of the exponent?

• 12

• 36

• 18

• 6

When solving the expression 14 - 9, what is the result?

• 7

• 23

• 5

• 3

What should you do first when evaluating the expression 3^2 + (6 + 4)?

• Multiply 3 and 2

• Add 3 and 2

• Square 3

• Add 6 and 4

What is the result of 100 - 90 + 2 when following the order of operations?

• 10

• 12

• 92

• 2

How do you handle brackets in an expression?

• Treat them as larger parentheses

• Multiply them

• Ignore them

• Solve them last

What is the result of 2^3?

• 4

• 8

• 6

• 12

How do you multiply fractions?

• Divide the numerators and denominators

• Add the numerators and denominators

• Subtract the numerators and denominators

• Multiply the numerators and denominators separately

What is the final answer for the expression 8.2 * 13 + 8?

• 130.2

• 114.65

• 106.6

• 120.8