小玉家的客厅长8米、宽4米，准备铺上地砖．选择下面的哪种地砖便宜些？
直接写出结果×4﹦×﹦ 12÷﹦÷﹦ 12+﹦÷﹦÷6﹦ 9÷﹦×﹦ 12×﹦
直接写出得数．×= 1÷=×= 77：63=÷9=×=÷8= 4：2.5=×=
×= 0×=÷====
直接写出得数×3=×16=×=（+）×4=×+×=+=÷3= 4÷=
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×4﹦
×
﹦ 12÷
﹦
÷
﹦
÷
﹦
÷6﹦ 9÷
﹦
×
﹦ 12×
﹦
×
= 1÷
=
×
= 77：63=
÷9=
×
=
÷8= 4：2.5=
×
=
×
= 0×
=
÷
=
=
=
=
×3=
×16=
×
=（
+
）×4=
×
+
×
=
+
=
÷3= 4÷
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
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