The way we learn math! Dedicated to Mrs. Fry.. Mrs. Fry comes up with all sorts of ways to help make math fun& to make it make sense. This power point.

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Presentation transcript:

The way we learn math! Dedicated to Mrs. Fry.

Mrs. Fry comes up with all sorts of ways to help make math fun& to make it make sense. This power point is a reminder of all the great things she comes up with!

Order of Operations! [B]P.E.M.D.A.S 75/(7+8)-3 75/(15) [(22-17)+5(1+2)]-2 3 9[5+5(3)]-2 3 9[5+15]-2 3 9[20]

Translating Expressions Expression: A mathematical phrase that contains numbers, symbols, and/or variables. Addition: Added to, sum, increased by, *more than Subtraction:*subtracted from, difference, *less than, decreased by, *fewer than Multiplication: Multiplied, product, twice, double, times Division: half, quoti ent *= SWITCHERS! (Flip)

Proportion! 1) Simplest form 2) Common multiplier 3) Cross multiply 3c flour 6c 2c sugar 4c +

Negatives: Debt Temperature Football Elevation Golf Absolute Values: The distance an integer is from 0. No negatives Only positives! |-456| 456 |77| 77 |42| |69|

Multiplying&dividing integers = Love - = Hate -2 * -9 = * 9 = / -2 = 4

Input&Output! Pop Machine! Domain: x- Coordinate from each pair Range: y- Coordinate from each pair Function: a relationship that assigns exactly one output value (y) to every one input value. (x) EX:(-5,2) (3,-3) (1,7) (3,0) 2|7 -5|20 -10|20 -2|10 1|20 Scale

Inequality: A mathematical sentence that contains, x=< At least! No more than! X>46in A<110 people Must be!

Prime Composite A number that only has 2 factors 1&itself A number that has more than 2 factors OR Rules: 2: even 3: sum of digits is divisible by 3 4: last 2 digits are divisible by 4 5: ends in 5 or 0 6: divisible by 2 AND 3 8: last 3 digits are divisible by 8 9: sum of digits is divisible by 9 10: ends in 0

Ratios: Not fractions! Tissues to pens Kids per desk Unit rate Bulky to Streamline Miles per gallon A rate is a ratio of two measurements having different units. Dollars to pounds

Properties Commutative: 1+4=4+1 Associative: (2+1)+4=2+(1+4) Identity: = * 1 = 21 Zero 77 * 0 = 0