Solving Parentheses in Number Models

What is the first step in solving problems with parentheses?

• Solve the parentheses part of the problem first

• Solve the part outside the parentheses first

• Ignore the parentheses

• Solve the entire problem at once

In the first example, what is the result of 9 times 5?

• 50

• 45

• 54

• 40

After solving 9 times 5, what is the next step in the first example?

• Multiply 6 by 45

• Subtract 6 from 45

• Add 6 to 45

• Divide 45 by 6

In the second example, what is the result of 3 plus 6?

• 8

• 9

• 7

• 6

What is the final result of the second example after solving 6 times 9?

• 60

• 45

• 50

• 54

In the third example, what is the result of 2 plus 6?

• 9

• 6

• 7

• 8

What is the final result of the third example after adding 16 and 8?

• 26

• 24

• 28

• 22

In the fourth example, what is the result of 20 minus 2?

• 18

• 19

• 17

• 16

What is the final result of the fourth example after adding 18 and 10?

• 28

• 27

• 25

• 26

In the final challenge, what is the result of 2 times 20?

• 60

• 50

• 40

• 30