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Zero is an even integer.
Zero is neither positive nor negative.
Zero is a multiple of every number.
Zero is a factor of no number.

What is the square root of 2?

= 1.4

What is the Square root of 3?

= 1.7

What is the Area of a Trapezoid?

((sum of bases)(height))/2

Standard Deviations of n Numbers

1. Find arithmetic mean
2. Find differences between mean and each of the n numbers.
3. Square each of the differences.
4. Find avarage of squared differences.
5. Take non-negative square root of this average.

1. Odd + odd =
2. Even + Even =
3. Odd + Even =

1. Even
2. Even
3. Odd

1. Odd X Odd =
2. Even X Even =
3. Odd X Odd =

1. Odd
2. Even
3. Even
Any multiplication involving an even number creates an even product.

What is Gross?

Is the total amount before any deductions are made.