+
1+1
...................................................................................................................2................................................................................................................
4-5
1
1x0
0
1\10
0.1
1+(45x3)
336
5 +34
39
10-11
-1
6x3
18
20\4
12
10+15x(36-23)
205
64+76
140
564-5
559
15x6
90
563\56
10.0535714286
66\(456-2)
0.145374449339
400+689
1089
6765-6767
-2
5555x5656
31419080
456\28
16.2857142857
3+(1+2)
6
5,667,564+64,537,474
70,205,038
1-7
-6
50x56
2800
45\1
45
55x(3+3)
330