64-23
41
56+23
79
2x6
12
146-36
110
516+174
690
8x9
73
4230-3121
1111
2623+1224
3847
11x9
99
19458-18324
1134
28643+11356
39999
12x7
84
178482-138371
40111
581406+418592
999998
14x13
182