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What is the order of math?
P.E.M.D.A.S is how i remember it Parentheses Exponent Multiplication Division Addition Subtraction also, whichever comes first in the problem goes first, but this only works with multiplication and division and also addition and subtraction but only multiplication with division and addition with subtraction
The similarities of subtraction and addition?
It is tough to find similarities, but I can think of couple listed below. 1. Both Addition and Subtraction can only be done on numbers. 2. Subtraction is also addition with negative number. Hope this helps.
Is subtraction and addition commutative and associative?
Addition: yes. Subtraction: only if you redefine it as an addition, for example 5 - 3 = 5 + (-3) = (-3) + 5 = -3 + 5. You might simply keep each number with its sign.
When can Radical expression be combined?
They can always be combined for multiplication. For division, the only requirement is that the denominator is not 0. For addition and subtraction the terms, after simplification, must have identical radicals.So, for example, sqrt(18) + sqrt(50) can be simplified to 3*sqrt(2) + 5*sqrt(2) and that simplifies to 8*sqrt(2).
How can you figure out 123456789 equals 100 only using addition and subtraction?
123-45-67+89??
