15-7= 8+5= 7+6= 18-9=
19-5= 12-9= 16-8= 11-2-1=
8+8= 9+5= 13-5= 12-3+3=
78-6=
81+5=
65-5=
87-9=
72+5-9=
3+80=
77-70=
40+30=
14-9=
10+7-8=
13-5=
90-80=
98-8=
13+20=
80-20+8=
20+80=
12+26=
55+20=
21+5=
13-9+20=
12个
8个
7个
(个)
2号车运了多少筐苹果?(画“√”)
80
70
22
3号车运了多少筐苹果?(画“√”)
﹣5,+3,﹣3.5,0.75,﹣