17 terms

7th Grade Math Formulas

~formulas ~things to remember ~etc.
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Terms in this set (...)

Area of Circle
pi x r^2
Area of Square
s^2
Area of Rec.
lw
Area of Triangle
.5bh
Area of Parallelogram
bh
Circumference of Circ.
pi x d or 2pir
Vol. of Prisms and Cylinders
area of base * height
Vol. of Pyr. and Cones
1/3area of base height
Percent of Change
amt of change/orig. amt
Percent Proportion
is/of=%/100
Simple Interest
prt
Order of Operations
PEMDAS
Subtracting Integers
Keep, Change, Change
Equations
Have an equals sign ( = )
Expressions
Do NOT have an equals sign
Inequalities Exception
When you multiply/divide by a (-), you must flip the sign.
Probability
number of favorable outcomes/total possible outcomes