Basic Arithmetic Operations and Exponents

The video tutorial guides sixth graders through solving math problems using the order of operations (PEMDAS). It covers problems 13, 15, 17, 20, and 21, demonstrating how to solve each step-by-step. The teacher explains the importance of grouping symbols and evaluates expressions to find errors. The session concludes with a real-world application, calculating how much plants a herd of elk can consume in a week.

What is the first step in solving an expression using the order of operations?

• Multiplication

• Parentheses

• Subtraction

• Addition

In problem 13, what is the result of 3.1 plus 6.4?

• 11.5

• 10.5

• 9.5

• 8.5

What is 4 to the second power?

• 16

• 12

• 8

• 20

In problem 15, what is the result of three to the second power?

• 15

• 9

• 6

• 12

What is the result of 15 times 3 in problem 15?

• 30

• 45

• 75

• 60

In problem 17, what is one half to the third power?

• 1/10

• 1/4

• 1/6

• 1/8

What is the result of 1.25 times 4 in problem 17?

• 3

• 6

• 4

• 5

In problem 20, what is the result of 21 minus 3?

• 22

• 20

• 18

• 16

What is the result of 18 divided by 3 in problem 20?

• 5

• 4

• 7

• 6

In problem 23, what is the result of 8 minus 4?

• 2

• 5

• 3

• 4