14-6= 11-8= 7+5= 17-7+2=
8+9= 12-3= 15-9= 11-3-3=
19-8= 70+8= 78-8= 13-(6+3)=
50+40= 90-50= 54+4= 7+(14-9)=
35+50= 38-20= 59-5= 30+40-20 =
6+54= 85-9= 37-20+40= 39-(9-5)=
13﹣4=
69+1=
51﹣9=
40﹣20﹣20=
5+40=
24+5=
37﹣5=
39﹣(14+6)=
64﹣30=
28+30=
8+24=
45+(10﹣7)=
我会算:
答:图书角还剩□本书
29﹣9=
77﹣70=
62+6=
17﹣9+21=
87﹣7=
13﹣8=
20+30=
18﹣9+2=
37﹣30=
53﹣3=
2+22=
15﹣6+7=
60﹣30=
10+80=
5+42=
56﹣6+5=
16-8= 96-10= 30+15= 5+6= 8+6+40=
79-9= 12-3= 40+9= 95+3= 64+5-20=
40+30= 11-4= 22+5= 7+62= 46-6+54=
10+34= 58-8= 73-70= 13-7= 32-20-7=
20+9= 19﹣8= 16﹣4= 19﹣9= 6+7﹣5=
2+40= 12﹣3= 13﹣7= 6+60= 14﹣8+6=
14﹣8= 47﹣7= 16﹣7= 17﹣9= 9+4﹣10=
11﹣4= 56﹣50= 49﹣40= 6+30= 8﹣3+30=