the way we learn math!
DESCRIPTION
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!. 75/(7+8)-3 75/(15)-3 5-3 2. [B]P.E.M.D.A.S. - PowerPoint PPT PresentationTRANSCRIPT
The way we learn math!
Dedicated to Mrs. Fry.
(1+𝑥 )𝑛=1+𝑛𝑥1 !
+𝑛 (𝑛−1 ) 𝑥2
2 !+… 𝑥= −𝑏±√𝑏 2−4𝑎𝑐2𝑎
𝑎2 +𝑏2=𝑐
2
𝐴=𝜋 𝑟 2
𝑓 (𝑥 )=𝑎0+∑𝑛=1
∞
(𝑎𝑛 cos 𝑛𝜋 𝑥𝐿 +𝑏𝑛 sin 𝑛𝜋 𝑥
𝐿 )
72100
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)-3 5-3 2
9[(22-17)+5(1+2)]-23
9[5+5(3)]-23
9[5+15]-23
9[20]-8 180-8 172
Translating Expressions
Expression: A mathematical phrase that contains numbers, symbols, and/or variables.
Addition: Added to, sum, increased by, *more thanSubtraction:*subtracted from, difference, *less than, decreased by, *fewer thanMultiplication: Multiplied, product, twice, double, timesDivision: half, quotient
*=SWITCHERS! (Flip)
Proportion!1) Simplest form2) Common multiplier3) Cross multiply
3c flour 6c
2c sugar 4c
1024
512
+
Negatives:
DebtTemperature
Football
Elevation
Golf
Absolute Values:The distance an integer is from 0.
No negatives Only positives!|-456| 456
|77| 77
|42| |69| 42 69
0
Multiplying&dividing integers
+ + ++ - -- + - - - +
+ = Love- = Hate
-2 * -9 = 18-2 * 9 = -18
-8 / -2 = 4
Input&Output!
Pop Machine!
Domain: x- Coordinate from each pairRange: 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|101|20
Scale
Inequality: A mathematical sentence that contains <, >, < , or >
x=<777777
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: even3: sum of digits is divisible by 3 4: last 2 digits are divisible by 45: ends in 5 or 0 6: divisible by 2 AND 38: last 3 digits are divisible by 8 9: sum of digits is divisible by 910: ends in 0
Ratios:
Ratios are comparisons of 2 things.
13Girls to 11Boys 13G;11B
Not fractions!
45671000000
Tissues to pens
Kids per desk
Unit rate
Bulky to StreamlineMiles per gallon
A rate is a ratio of two measurements having different units.
Dollars to pounds
PropertiesCommutative:
1+4=4+1Associative:
(2+1)+4=2+(1+4)Identity:
7.9 + 0 = 7.9
21 * 1 = 21
Zero
77 * 0 = 0