2.4×7.6+7.6×6.5+7.6+0.76．
+=+=﹣=﹣=﹣= 1﹣= 1﹣=+=﹣=
用你喜欢的方法计算下面各题．+﹣﹣+﹣﹣﹣（﹣）+﹣++++（﹣）﹣+﹣．
直接写得数． 1﹣=+=+= 1﹣﹣=+3=+=+=++=
计算下面各题．=========
脱式计算，能简算的要简算．﹣﹣++﹣﹣（+）
+
=
+
=
﹣
=
﹣
=
﹣
=
= 1﹣
=
﹣
+
﹣
﹣
+
﹣
﹣
﹣
）
+
﹣
+
+
+（
﹣
）
﹣
+
﹣
．
=
+
=
+
= 1﹣
﹣
=
+3=
+
=
+
=
+
+
=
=
=
=
=
=
=
=
=
=
﹣
﹣
+
+
﹣
﹣（
+
）
粤公网安备 44130202000953号