Standard to Metric
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1 gal =
3.8 L
1 kg =
2.2 lbs
1 in =
2.54 cm
1 m =
3.28 ft
1 oz =
28.35 g
1 m
1.09 yd
Standard System
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1 ft =
12 inches
1 yd =
3 ft
1 mi
5,280 ft
1 lb =
16 oz
1 pt
2 c
1 gal
4 qt
1 t =
2,000 lbs
Math REVIEW
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REMEMBER, to when you are trying to multiply fractions with mixed numbers, you must first convert them to improper fractions before multiplying, then you can convert the answer back to a mixed number if the answer choices are in that form
This is different from adding and subtracting fractions - you do not have to change them to an improper fraction first, but it may be helpful to do so
Mean - add all the numbers up in the data set and divide by how many numbers there are in the set
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Mode - the number that appears in the data set most frequently
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Median - the middle number. If the data set is even, sum the two middle numbers and divide by 2
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Geometry
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To find circumference of a circle
C = 2 x pi x r
d=2 x r so can be simplified to pi x d
If you want to find half of the circle, divide the answer by 2
Area for rectangle, parallelogram, and square
A = b x h
Area for triangle
A = 0.5 x b x h
Area for trapezoid
A = 0.5 x (b1 + b2) x h
Area for rhombus
Area = 0.5 x d1 x d2
Area for circle
A = pi x r squared