Math Puzzel

[Aquails090]

Ok, this is how this will work:

I give a math problem.
The next person must then answer my problem correctly. Then they post a math problem, and so on and so forth. Pretty simple.

Here we go:

1 + 1 = ?
^^^^^^
Do exacly above, except different numbers, and you can do multiple numbers/signs/etc., just have one "?" to become the answer next, OK?

1 + 1 = ?

[Aegis Runestone]

1 + 1 = 2

:eyebrow: Yeah...okay.

6 + 8 * 9 - 5 + 15 *0.5 = ?

Let's see if you know your order of operations.

[Ultra22Lemming]

6 + 8 * 9 - 5 + 15 * 0.5 = ?

I'm not sure of what you meant by *. Is it the multiplication sign or is it exponent? Hmm ... I'm ganna guess multiplication ...

6 + 72 - 5 + 7.5 = ?
78 - 5 + 7.5 = ?
73 + 7.5 = ?
80.5 = ?

Hmmm .... (4 + 8 x 7) ^ 2 + 2 = ?

Let's see how this person does with order of operation ... (note x means multiplication and ^ means exponent)

[Aegis Runestone]

It's multiplication. Solve my question first, bud.

This would be an exponent: 6 ^ 2.

(4 + 8 * 7) ^ 2 + 2 = ?

(4 + 56) ^ 2 + 2 = ?

(60) ^ 2 + 2 = ?

3600 + 2 = 3602

Time to get difficult.

log13 80 = ?

You'll need a calculator for this.

Hint: logx a = b is the same as:
x ^ b = a

Get to it!