what is 3-3×6+2
In the evaluation of a mathematical expression there is an order of preference in how operations will be carried out.
"Operations" mean things like add, subtract, multiply, divide, squaring, etc.
There is an mnemonic called BODMAS which lets you decide in what order to carry out operations.
B - Brackets all operations inside brackets should be carried out first.
O - Order squaring, cubing. i.e. taking things (terms) to a power.
DM - Divide/Multiply - these two operations have the same order of preference and can be carried out in any order.
AS - Add/Subtract - these two operations have the same order of preference and can be carried out in any order.
What we have is,
3-3x6+2
There are no brackets or powers. DM takes precedence over AS, so multiplication takes place first. this gives us,
3-18+2
All we have left now is AS. The addition and subtraction can be carried out in any order.
5 - 18 = -13
Answer: -13