列竖式计算，并且验算77÷5=83÷4=96÷7=
直接写出得数． 0.83+0.27= 2.9×100= 50÷1000= ×10=0.7 80÷ =0.8+= 5.6+4= 0.13×1000=﹣0.35=
直接写出得数．+=﹣+=+=﹣=+=+=++=﹣=+= 3﹣﹣=
直接写出得数﹣=﹣=﹣=+=+=﹣=+=﹣=
直接写出得数．+=﹣=+=﹣= 10﹣﹣=====．
直接写得数===== 1﹣= 1﹣==
+
=
﹣0.35=
+
=
﹣
+
=
=
﹣
=
+
=
+
=
+
+
=
﹣
=
+
= 3﹣
﹣
=
﹣
=
﹣
=
﹣
=
+
=
+
=
﹣
=
+
=
﹣
+
=
﹣
=
+
=
﹣
=
﹣
=
=
=
=
=．
=
=
=
=
= 1﹣
= 1﹣
=
=
粤公网安备 44130202000953号