( 673 x 2 ) + ( 336,5 x 2 ) =
6 + 28 : 7 x ( -9 ) + 3x ( -5 ) =
( 2 -5 +3 ) -7+3 -10 ( -8 ) + ( -1 ) x 5 +7 x 3 =
+2 ( 5x4 )-7( 8+9 ) + 166: 99 =
92+50 x ( 108 +64 ) x √(81) =
5 x ( -2 ) -6 x 4 + 9 -3 x4 - 5 =
-9,4
+ 77,4
+ 92
- 42
8,076
-77