4+6 5+4 9-8 6-1
3+2 10-9 10-0 8+1
+6<10 -10<3 8+<11 -5<9
14-615-7 13-714-8 11-312-2
12-314-9 12-411-7 13-912-6
14-715-7 13-512-3 11-613-5
45×0.945 3.8﹣3.7 ÷1