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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Presentation transcript:

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 Please learn these rules!!!!!!!!

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: x4-2 14÷7+12x3-9

Examples =22-3 add 7 to 15

Examples =22-3 add 7 to 15 =19 subtract 3 from 22

Examples 3+6x x4-2= multiply 6 and 4

Examples 3+6x x4-2= multiply 6 and 4 =27-2 add 3 and 24

Examples 3+6x x4-2= multiply 6 and 4 =27-2 add 3 and 24 =25 subtract 2 from 27

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

14÷7+12x3-9 14÷7+12x3-9=2+12x3-9 divide 14 by 7 = multiply 12 & 3

14÷7+12x3-9 14÷7+12x3-9=2+12x3-9 divide 14 by 7 = multiply 12 & 3 =38-9 add 2 and 36

14÷7+12x3-9 14÷7+12x3-9=2+12x3-9 divide 14 by 7 = multiply 12 & 3 =38-9 add 2 and 36 =29 subtract 9 from 38

AnimalCosts anteater500 Spider monkey50 Pygmy hippopotamus100 Spectacled owl50 Tapir100 Fishing cat50 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.

AnimalCosts anteater500 Spider monkey50 Pygmy hippopotamus100 Spectacled owl50 Tapir100 Fishing cat50 a. Write an expression for the cost of adopting 1 Pygmy hippopotamus, 4 fishing cats, and 3 tapirs. Cost for cost for cost for 1 hippo plus 4 cats plus 3 tapirs 1x$ x$50 + 3x$100

AnimalCosts anteater500 Spider monkey50 Pygmy hippopotamus100 Spectacled owl50 Tapir100 Fishing cat50 Find the cost of adopting the animals. 1x$100+4x$50+3x$100=$100+4x$50+3x$100

AnimalCosts anteater500 Spider monkey50 Pygmy hippopotamus100 Spectacled owl50 Tapir100 Fishing cat50 Find the cost of adopting the animals. 1x$100+4x$50+3x$100=$100+4x$50+3x$100 =$100+$200+3x$100

AnimalCosts anteater500 Spider monkey50 Pygmy hippopotamus100 Spectacled owl50 Tapir100 Fishing cat50 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

AnimalCosts anteater500 Spider monkey50 Pygmy hippopotamus100 Spectacled owl50 Tapir100 Fishing cat50 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 =$600 The cost of adopting the animals is $600.