工程队铺设一条长1500米的公路，已铺设了4天，每天铺设150米。余下的每天铺设180米，还要几天铺设完成？
在如图中表示+．
直接写出得数．== 1﹣==== 1﹣==
直接写出得数.﹣= 0.12+= 8﹣8= 1+2.1﹣1.25= 2﹣= 1.2+= 1++= 3+0.25﹣3+0.25=
直接写出得数．========
直接写得数．+= 1﹣=﹣=+=﹣= 25÷26=+= 1﹣+=
+
．
=
= 1﹣
=
=
=
= 1﹣
=
=
﹣
= 0.12+
= 8
﹣8= 1
+2.1﹣1.25=
= 1.2+
= 1+
+
= 3
=
=
=
=
=
=
=
=
+
= 1﹣
﹣
=
+
=
﹣
= 25÷26=
+
= 1﹣
+
=
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