7 + (2 x 15) - 6 = 31
32 - (15 x 2) + 3 = 5
12-3(2+15) = -39
Without any parenthesis is: 92 - 2 * 15 + 16 - 8 = 59
2 times 2 plus 2 times 2 plus 2 minus 2 times 2 is equal to 6.
Two plus 3 minus 2 times 1 squared plus 4 times 16 squared minus 4 times 2 is equal to 1,019.
-2 times -2 = plus 4 since minus times minus is plus
It is plus 4
A plus times a plus is still a plus. Below is the way I remembered it: If there is not a minus sign, it is plus (positive). If there is 1 minus sign, it is minus (negative). If there are 2 minus signs, it is plus (positive).
4 + 15 - 2 = 17
1 minus 2 plus 123 times 4 is equal to 491.
17
44