Are you ready p. 260

Module 10

Are you ready? P. 260

Using parentheses

Example

(6 + 4) x (3 + 8 + 1) =

10 x 12 =

= 120

When there are several parentheses sets, start
from left to right.

Multiple Choice

Evaluate.

11 + (20 - 13)

• 18

• 44

• 17

• 45

Multiple Choice

Evaluate.

(10 - 7) - (14 - 12)

• -23

• 23

• 1

• 5

Multiple Choice

Evaluate.

(4 + 17) - (16 - 9)

• -4

• 14

• 28

• -38

Words of operations

Example:

Write a numerical expression for the quotient of 20 and 5.

​ 20 ÷ 5

Write 20 divided by 5

​Quotient means to divide.

Multiple Choice

Write a numerical expression for the word expression.

The difference between 42 and 19

• 42 - 19

• 42 + 19

• 42 x 19

• 42/19

Multiple Choice

Write a numerical expression for the word expression.

The product of 7 and 12

• 7 ÷ 12

• 7 - 12

• 7 x 12

• 7 + 12

Evaluate expressions

Example:

Evaluate 2(5) - 3²

2(5) - 3² = 2(5) - 9 Evaluate exponents.

= 10 - 9 Multiply.

= 1 Subtract.

Multiple Choice

Evaluate the expression.

3(8) - 15

• 9

• 24

• 7

• 21

Multiple Choice

Evaluate the expression.

4(2 + 3) - 12

• 9

• 6

• 3

• 8

Multiple Choice

Evaluate the expression.

3(7) - 4(2)

• 13

• 21

• 8

• 36

​Do Independently:

Q#: 4, 5, 6, 9, 10, 12, 15, 16