addition
456+123
579
88-22
66
5x5
25
182/13
14
0.1x10
1
67+22
89
2-3
-1
22x2
44
500/5
100
0.11x1000
110
3556+65
3621
56-11
45
123x3
369
125/5
25
0.001x10000
1
1+1
2
123-123
0
111x2
222
1000/200
5
0.7x0.8
0.56
123456789+1
123456790
565-111
454
1800
18/9
2
9.9x10
99