Note: the +/-. button changes the current number's sign and does not act like a plus or minus sign like in other calculators. 0 is used as an empty number or to multiply numbers by 10, thus it's not avaliable to be multiplied like "9*0" or similar equations as they have no use.

7	8	9	CE	Del
4	5	6	=	**
1	2	3	+	-
0	.	+/-	*	/