Operators connect constants and variables to form expressions. The arithmetic operators include:

$+$ Addition

$-$ Subtraction

$*$ Multiplication $/$ Division

& Minimum

$!$ Maximum

# Modulo

$1+2=3$

$3-2=1$

$2*3=6$

$3/2=1($Integer division only$)2$&$3=2$

$2!3=3$

$13$#$5=3($Remainder after division$)$

An important feature of these, and all operators, is that evaluation in an expression takes place STRICTLY FROM LEFT TO RIGHT. Parentheses may be used to group parts as in algebra.

The & $($minimum$),!($maximum$),$ and # $($modulo$)$ operators are probably less familiar than the other four operators. Below are some examples of how they can be used:

X#$10=$

X&$10=$

X$!10=$

X$!1$&$10=$ X if X is between $1$ and $10,1$ is X is less than $1,$

Remainder of X$/10$

X if X is less than $10,$ otherwise $10$

X if X is greater than $10,$ otherwise $10$

and $10$ if X is greater than $10$ Positive value of X

$-$X$!$X $=$

Question: Now for an example. What is $1+1*3/2+7$#$12?$

A$.9$

B$.7$

C$.0$

D$.10$

E$.-131071$

F$.$ None of the above