一间长方形办公室长8米，宽6米，铺这间办公室地面，一共用了576块木地板，平均每平方米铺了多少块木地板？
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直接写出得数．== 1﹣=+0.625=== 3﹣=+0.75=
口算：+= 1.52=﹣= 1.8÷2.7=﹣=+= 4+= 3﹣=﹣=﹣=﹣﹣=++=
（1）+= （2）﹣= ．
直接写出得数．========
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=
=
=
=
=
=
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= 1﹣
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+0.625=
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= 3﹣
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+0.75=
+
﹣
= 1.8÷2.7=
﹣
=
+
= 4+
= 3﹣
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﹣
=
﹣
=
﹣
﹣
=
+
+
=
+
= 
﹣
= ．
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