ORDER OF OPERATIONS WITH INTEGERS

Answer these questions without using a calculator.

Problem 1 :

4 - (5 - 3)

Solution:

Evaluation

= 4 - (5 - 3)

= 4 - 2

= 2

Operation

Parenthesis

Subtraction

Result

Problem 2 :

6 - (9 - 4)

Solution:

Evaluation

= 6 - (9 - 4)

= 6 - 5

= 1

Operation

Parenthesis

Subtraction

Result

Problem 3 :

-4 + (3 + 1)

Solution:

Evaluation

= -4 + (3 + 1)

= -4 + 4

= 0

Operation

Parenthesis

Addition

Result

Problem 4 :

6 + 4 × 2

Solution:

Evaluation

= 6 + 4 × 2

= 6 + 8

= 14

Operation

Multiplication

Addition

Result

Problem 5 :

9 - 3 × 4

Solution:

Evaluation

= 9 - 3 × 4

= 9 - 12

= -3

Operation

Multiplication

Subtraction

Result

Problem 6 :

16 + 4 ÷ 4

Solution:

Evaluation

= 16 + 4 ÷ 4

= 16 + 1

= 17

Operation

Division

Addition

Result

Problem 7 :

10 × 4 - 4 × 7

Solution:

Evaluation

= 10 × 4 - 4 × 7

= 40 - 28

= 12 

Operation

 Multiplication

Subtraction

Result

Problem 8 :

30 ÷ 3 + 40 ÷ 2

Solution:

Evaluation

= 30 ÷ 3 + 40 ÷ 2

= 10 + 20

= 30

Operation

Division

Addition

Result

Problem 9 :

5 × 8 + 6 × 5

Solution:

Evaluation

= 5 × 8 + 6 × 5

= 40 + 30

= 70

Operation

Multiplication

Addition

Result

Problem 10 :

5 × 22

Solution:

Evaluation

= 5 × 22

= 5 × 4

= 20

Evaluation

Exponent

Multiplication

Result

Problem 11 :

3 × 102

Solution:

Evaluation

=  3 × 102

= 3 × 100

= 300

Operation

Exponent

Multiplication

Result

Problem 12 :

32 + 42

Solution:

Evaluation

= 32 + 42

= 9 + 16

= 25

Operation

Exponent

Addition

Result

Problem 13 :

6 + 3 × 4 + 1

Solution:

Evaluation

= 6 + 3 × 4 + 1

= 6 + 12 + 1

= 19

Operation

Multiplication

Addition

Result

Problem 14 :

8 + 4 ÷ 2 + 1

Solution:

Evaluation

= 8 + 4 ÷ 2 + 1

= 8 + 2 + 1

= 11

Operation

Division

Addition

Result

Problem 15 :

6 - (-6 - 6)

Solution:

Evaluation

= 6 - (-6 - 6)

= 6 - (-12)

= 18

Operation

Parenthesis

Addition

Result

Problem 16 :

6 × (5 - 4) + 3

Solution:

Evaluation

= 6 × (5 - 4) + 3

= 6 × 1 + 3

= 6 + 3

= 9

Operation

Parenthesis

Multiplication

Addition

Result

Problem 17 :

27 ÷ (3 + 6) - 3

Solution:

Evaluation

=  27 ÷ (3 + 6) - 3

= 27 ÷ 9 - 3

= 3 - 3

= 0

Operation

Parenthesis

Division

Subtraction

Result

Problem 18 :

16 - [10 - (6 - 2)]

Solution:

Evaluation

= 16 - [10 - (6 - 2)]

= 16 - [10 - 4]

= 16 - 6

= 10 

Operation

Parenthesis

Parenthesis

Subtraction

Result

Problem 19 :

Solution:

Evaluation

= (30 + 10) ÷ (30 - 10)

= 40 ÷ 20

= 2

Operation

Parenthesis

Division

Result

Problem 20 :

Solution:

Evaluation

= (15 + 45) ÷ (45 + 5)

= 60 ÷ 50

= 6/5

Operation

Parenthesis

Division

Result

Problem 21 :

Solution:

Evaluation

= 14 ÷ (14 - 7)

= 14 ÷ 7

= 2

Operation

Parenthesis

Division

Result

Problem 22 :

(6 + 3)2

Solution:

Evaluation

=  (6 + 3)2

= 92

= 81

Operation

Parenthesis

Exponent

Result

Problem 23 :

(10 + 4)2

Solution:

Evaluation

= (10 + 4)2

= 142

= 196

Operation

Parenthesis

Exponent

Result

Problem 24 :

(19 - 9)2

Solution:

Evaluation

= (19 - 9)2

= 102

= 100

Operation

Parenthesis

Exponent

Result

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