16-8= 0+8= 70-50= 12+70= 60+20+4=
80-5= 30+39= 54-6= 27+9= 66-(33+7)=
44+6= 60+30= 36+50= 79-60= 7+(73-70)=
44-6= 60+4= 36-5= 79-9= 7+7+7=
41+839
45+3040+35
84-775
38+4081-9
82-4051-9
66+786-8
我会算:
答:图书角还剩□本书
86-40=
38+9=
14-5=
7+31=
72-8=
40-20+3=
27-8=
40+25=
75-9=
9+9=
24+30=
6+47=
16-7=
67-6=
25+25=
5+7=
90-70=
13-6=
59-30=
32+10=
76-20=
40+18=
96-56=
30+70=
95-3=
70+5=
40+60=
6+25=
35+50=
74-8=
56-9
67+30=
45+50=
55-20=
83-=43 32+=40 -20<28
+30=74 -9=35 62-=56+