1112 9+67+6 10-43+3
17-77 9-58-5 9+35+8
+2=6 7+=10 -2=10
-9=1 5+=13 +3=12
10
5
<<<<<
①14.56﹣6.62+5.44﹣8.38
②×0.8×12.5
③5.9×63+59×3.7
④÷[×(﹣)]