# order of operations rules ( ) exponents *multiply and/or divide in order from left to right *add...

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Order of Operations Rules ( ) Exponents *Multiply and/or divide in order from left to right *Add and/or subtract in order from left to right.

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Order of Operations

Rules

( )Exponents

*Multiply and/or divide in order from left to right

*Add and/or subtract in order from left to right.

Order of Operations

Rules: ( ) Exponents Multiply and/or divide in order from left

to right Add and/or subtract from left to right

Points to Remember

Only addition and subtraction- work straight across

Only multiplication and division – work straight across

All mixed up- must follow rules

Examples

Find the value of each expression:

15+7-3

3+6x4-2

14÷7+12x3-9

Examples

Examples

15+7-315+7-3=22-3 add 7 to 15 =19 subtract 3 from 22

Examples

3+6x4-23+6x4-2=3+24-2 multiply 6 and

4

Examples

3+6x4-23+6x4-2=3+24-2 multiply 6 and

4 =27-2 add 3 and 24

Examples

3+6x4-23+6x4-2=3+24-2 multiply 6 and

4 =27-2 add 3 and 24 =25 subtract 2 from

27

14÷7+12x3-914÷7+12x3-9=2+12x3-9 divide 14 by

7

14÷7+12x3-914÷7+12x3-9=2+12x3-9 divide 14 by

7 = 2+36-9 multiply 12 & 3

14÷7+12x3-914÷7+12x3-9=2+12x3-9 divide 14 by

7 = 2+36-9 multiply 12 & 3 =38-9 add 2 and 36

14÷7+12x3-914÷7+12x3-9=2+12x3-9 divide 14 by

7 = 2+36-9 multiply 12 & 3 =38-9 add 2 and 36 =29 subtract 9 from

38

Animal Costs

anteater 500

Spider monkey 50

Pygmy hippopotamus

100

Spectacled owl 50

Tapir 100

Fishing cat 50

a. Write an expression for the cost of adopting 1 Pygmy hippopotamus, 4 fishing cats, and 3 tapirs.

b. Find the cost of adopting the animals.

Animal Costs

anteater 500

Spider monkey 50

Pygmy hippopotamus

100

Spectacled owl 50

Tapir 100

Fishing cat 50

a. Write an expression for the cost of adopting 1 Pygmy hippopotamus, 4 fishing cats, and 3 tapirs.

Cost for cost for cost for1 hippo plus 4 cats plus 3 tapirs1x\$100 + 4x\$50 + 3x\$100

Animal Costs

anteater 500

Spider monkey 50

Pygmy hippopotamus

100

Spectacled owl 50

Tapir 100

Fishing cat 50

Find the cost of adopting the animals.

1x\$100+4x\$50+3x\$100=\$100+4x\$50+3x\$100

Animal Costs

anteater 500

Spider monkey 50

Pygmy hippopotamus

100

Spectacled owl 50

Tapir 100

Fishing cat 50

Find the cost of adopting the animals.

1x\$100+4x\$50+3x\$100=\$100+4x\$50+3x\$100 =\$100+\$200+3x\$100

Animal Costs

anteater 500

Spider monkey 50

Pygmy hippopotamus

100

Spectacled owl 50

Tapir 100

Fishing cat 50

Find the cost of adopting the animals.

1x\$100+4x\$50+3x\$100=\$100+4x\$50+3x\$100 =\$100+\$200+3x\$100 =\$100+\$200+\$300

Animal Costs

anteater 500

Spider monkey 50

Pygmy hippopotamus

100

Spectacled owl 50

Tapir 100

Fishing cat 50Find the cost of adopting the animals.

1x\$100+4x\$50+3x\$100=\$100+4x\$50+3x\$100 =\$100+\$200+3x\$100 =\$100+\$200+\$300 =\$600The cost of adopting the animals is \$600.