口算
16﹣9= 9+7= 7+7= 14﹣8=
13﹣5= 13+6= 39﹣8= 89﹣7=
46+2= 75﹣5= 80+16= 84﹣40=
14+22= 96﹣51= 35﹣14= 30+□=80
32﹣□=28 15□﹣39=61．
口算
16﹣9= 9+7= 7+7= 14﹣8=
13﹣5= 13+6= 39﹣8= 89﹣7=
46+2= 75﹣5= 80+16= 84﹣40=
14+22= 96﹣51= 35﹣14= 30+□=80
32﹣□=28 15□﹣39=61．
﹣
+
1﹣
﹣
﹣
+
+
+
﹣
﹣
+
﹣
．
+
+
②1﹣
﹣
③
+
﹣
．
=
=
=
=
=
=
=
=
=
=
=
=
=
﹣
= 1﹣
=
=
粤公网安备 44130202000953号