一间卧室长为36分米，宽为28分米，要在卧室内铺上正方形瓷砖，正方形瓷砖的边长最长是多少分米比较合适？共需要这样的瓷砖多少块？
直接写出得数． 17×=+=×52= 1÷= 3﹣=÷3= 0.32= 20×5.5=
直接写出得数+=﹣=÷= 0.37+1.6=
+=÷= 12.6﹣6.06= 201+75=×=
直接写出得数：﹣= 6×= 0÷=×=+=÷=×=×=
+=﹣=+=+= 1+= 2﹣1=﹣= 3﹣= 1+2=×= 7﹣4=×13=×4= 8×=÷= 5÷=÷8= 8÷= 3÷=÷=
=
+
=
×52= 1÷
=
=
÷3= 0.32= 20×5.5=
+
=
﹣
=
÷
= 0.37+1.6=
+
=
÷
= 12.6﹣6.06= 201+75=
×
=
﹣
= 6×
= 0÷
=
×
=
+
=
÷
=
×
=
×
=
+
=
﹣
=
+
=
+
=
+
= 2
﹣1
=
﹣
= 3
﹣
=
+2
=
= 7﹣4
=
×13
=
×4= 8×
=
÷
= 5÷
=
÷8= 8÷
= 3
÷
=
÷
=
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