Answer this question show steps plz answer with steps

Mathematics

2 answers:

Nat2105 [25]3 years ago

6 0

Have you learned PEMDAS or "order of operations" yet ?

I have a hunch that this problem is to give you practice in using
the order of operations correctly.

PEMDAS means "Always do the operations in this order:

P . . . anything inside parentheses
E . . . exponents
M . . . multiplication
D . . . division
A . . . addition
S . . . subtraction

So what operations do we have in this problem ?

   5³ + 4÷2 - 5 x 6

5³ . . . an exponent

4÷2 . . . division

5 x 6 . . . multiplication

Let's go down the PEMDAS list, and do them in the right order.

Parentheses . . . none of those

Exponent . . . one of those. 5³ = 125

Multiplication . . . one of those. 5 x 6 = 30

Division . . . one of those . . . 4÷2 = <span>2

Now, let's put each of these where it belongs in the problem:

   </span><span> 5³   +   4÷2   -   5 x 6

   125 +    2 - 30

The problem is simpler already, and we haven't even finished PEMDAS yet.

We did P, E, M, and D . What's next ?

A for addition. One of those in the problem.    125 + 2 = 127

   Now the problem is 127 - 30

One operation left . . . S for subtraction. One of those in the problem.

   127 - 30 = 97 .

If you did the operations in the wrong order, you'd get
a different number. It would be wrong.

Using PEMDAS, you get 97, and that's the right result.
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