Evaluating Expressions with Decimals

The video tutorial covers evaluating expressions with decimals using the order of operations, also known as PEMDAS. It demonstrates solving various expressions, such as 40.6 + 2 * 9, 25 + 9 * 35.7, and 2 * 18.8 + 47.1, emphasizing the importance of performing multiplication before addition. The tutorial also explains how to handle decimals during calculations and concludes with dividing 788.9 by 18.7, rounding the result to the nearest whole number.

What does PEMDAS stand for in the order of operations?

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

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

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

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

In the expression 40.6 + 2 * 9, which operation should be performed first?

• Addition

• Multiplication

• Subtraction

• Division

What is the result of 40.6 + 2 * 9?

• 58.6

• 49.6

• 57.6

• 59.6

When multiplying 9 by 35.7, what is the first step?

• Subtract the numbers

• Divide the numbers

• Ignore the decimal and multiply

• Add the numbers

What is the result of 25 + 9 * 35.7?

• 326.3

• 336.3

• 356.3

• 346.3

In the expression 2 * 18.8 + 47.1, what is the first operation to perform?

• Subtraction

• Addition

• Multiplication

• Division

What is the result of 2 * 18.8?

• 38.6

• 36.6

• 39.6

• 37.6

What is the final result of 2 * 18.8 + 47.1?

• 82.7

• 83.7

• 85.7

• 84.7

When dividing 788.9 by 18.7, what should you do with the decimal points?

• Ignore them

• Move them to the right

• Move them to the left

• Keep them in place

What is the rounded result of 7 * 112.2 divided by 18.7?

• 40

• 42

• 43

• 41