12-3=
14-7=
8+4=
30+7=
42-2=
50+6=
20-9=
55-50=
36-6=
63-3=
25-5=
77-70=
7+9-8=
64-60+8=
17-9-2=
15-79 45-550 57-505
4+813 7+6076 12-57
7887 5+69 90+669 57-77+40
10099 15-96 85-58 13-64+8
+9=49 83-=80 - 8=8 12-=4
( )( )=( )(辆)
答:停车场还剩( )辆车。
15+4=
12-5=
4+9=
8+7-9=
14-8=
16-9=
15-6=
17-8+5
57-7=
40+5=
70+8=
80-50-10=
8+20=
57-50=
35-5=
14-5+90=
6+=13 12-=9 -8=7
42-2=+20
30+223 60+970 68-★78-★
28-819+10 15-612+4 50+★40+★