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PEMDAS is the order of operations which explains how problems are to be solved.
The P stands for parentheses, ( ), ; parentheses are to be performed first if any.
The E stands for exponents, n^n, (being raised to a certain power) is then performed.
The M stands for multiplication, * or x, and this is then performed.
The D stands for division, /, and this is then performed.
Multiplication and division are performed in the order read (left to right); what comes first is solved first as long as it is after parentheses and exponents.
The A stands for addition, +; which follows.
The S stands for subtraction, -, then performed.
The same rules for multiplication and division apply for addition and subtraction. Although addition is listed first, problems are solved in the order they are read as long as PEMDAS is followed.
Therefore, -9 * -8 - 16 = 56.
Multiplication is read first in -9 * -8 to equal 72.
This is then subtracted by 16 to get 56.
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Are the inequalities x -8 and -x 8 equivalent?
-16
What is 4 eighths times 9 eighths?
4/8 x 9/8 is 9/16.
What is minus 9 times minus 8 plus minus sixteen?
(-9 x -8) + (-16) = (72) -16 = 56
What is 8 over 15 divided by 9 over 10?
(8/15) / (9/10) = (8/15) x (10/9) = (8/3) x (2/9) = 16/27
How is 2 ninths of 72 equals 16?
that is the same as 2 x 72 dived by 9 2 x 72/9 = 2 x 8 = 16
