一个长方形苗圃东西长是2千米,南北长是80米,这个苗圃的面积有多少公顷?
直接写得数:
0.5+= ; 1÷
×2= ;
= ;(
)×8= ;
= ;
= ;
= ;
= ;
= 5
;
= ; 30÷25%= ; 3﹣1.03= .
口算天地.+
=
﹣
=
×
=
×
=
﹣
×
=
×
=
×
=
×
=
直接写出得数.+
= 4﹣
=
×
= 18÷0.9=
+
+
= 6÷3%= 4.4×5%= 0.72=
3.2×2.5×0.4=﹣
+
=
直接写得数.+
= ; 18×
= ;
×
= ;
1×= ;
﹣
= ;
×21= ;
×
= ;
×6= ;
×
= ;
×9= ;
×
= ; 2﹣
= .
直接写出得数.
87﹣26=×8= 1×32= 500÷25÷4= 0.2+0.83=
×
= 100×10%= 24÷
= 12×(
﹣
)=
+
+
=
:
(求比值)=