1910
2018
1516
9+68+7
18-518
16-314
9+77+9
1020
119 2019 8+512 16-316+3
107
1816
199
10+415
12-210
17-110
7+813 5+05-0
46 15-516
4+<7 +3>6 14->10
1619 8+66+8 16-35+5+5