A calculator.
It adds and subtracts numbers.
the top adds what the bottom adds. the top subtracts what the bottom subtracts. the top divides what the bottom divides. the top multiplies what the bottom multiplies.
An arithmetic operation happens.
12
-1
Almost all tattoos hurt. It is the skill of the tattoo artist that adds or subtracts from the pain.
Many devices do so, or allow you to do so. Some of the more obvious ones are computers, calculators, and abacuses
132
Well, the Pope always adds ans subtracts churches, so He does. But the TRUE answers is God ,Mary, and their Son Jesus.
92/132 = 23/33
X + Y = 23 XY = 132 Y = 23-x xy = x (23-x) = 23x -x2= 132 x2-23x+132 = 0 (X-11)(x-12) = 0 X = 11 Y = 12