12 + (2 x 3) - 7 = 12 + 6 - 7 = 11
Yes.
Order of Operations
Basically the same as the standard algebra rules: First, powers are evaluated (I am not sure about the order, but you can try it out); then multiplications and divisions are evaluated from left to right, then additions and subtractions are evaluated from left to right. The order can be changed with parentheses.
You didn't say the series (I prefer to use the word sequence) of even numbers are consecutive even numbers, or even more generally an arithmetic sequence. If we are not given any information about the sequence other than that each member happens to be even, there is no formula for that other than the fact that you can factor out the 2 from each member and add up the halves, then multiply by 2: 2a + 2b + 2c = 2(a + b + c). If the even numbers are an arithmetic sequence, you can use the formula for the sum of an arithmetic sequence. Similarly if they are a geometric sequence.
The arithmetic mean is more commonly known as the average. It is the sum of the values divided by the number of values.
A complex formula in Excel could have many arithmetic operators in it. There are many things that make a formula complex, so a formula with just one arithmetic operator or even no arithmentic operators could be complex too, depending on what it does.
MDAS (Multiplication, Division, Addition, Subtraction)
Excel does not change the year if the arithmetic operators have been used with the correct syntax.
Order of Operation.
Order of Operations
It follows the order of operations.
Yes.
Order of Operations
The basic arithmetic operations are addition, subtraction, multiplication and division, although this subject also includes more advanced operations, such as manipulations of percentages, square roots, exponentiation, and logarithmic functions.
Basically the same as the standard algebra rules: First, powers are evaluated (I am not sure about the order, but you can try it out); then multiplications and divisions are evaluated from left to right, then additions and subtractions are evaluated from left to right. The order can be changed with parentheses.
More Sideways Arithmetic From Wayside School was created in 1994.
More Sideways Arithmetic From Wayside School has 94 pages.