一块菜地的形状是三角形，它的底是80米，高是30米．如果每平方米可种大白菜8棵，这块地一共可以种大白菜多少棵？
直接写得数÷7= 42×= 6÷=×33=÷=+= 10÷1%=﹣20%=﹣= 24×50%=
直接写出得数．= 15=== 0.33==== 1﹣====
×= 1÷= 4×60%= 0.875÷0.125=÷2= 10÷=×3.6= 0×=
直接写得数．== 1÷40%=== 72×25%==
直接写出下列题目的得数． 7+66.3=÷=×÷= 14÷=÷20%=（+）×20=
÷7= 42×
= 6÷
=
×33=
÷
=
+
= 10÷1%=
﹣
= 24×50%=
= 15
=
=
=
=
=
=
=
=
=
=
×
= 1÷
= 4×60%= 0.875÷0.125=
=
×3.6= 0×
=
=
= 1÷40%=
=
= 72×25%=
=
÷
=
×
÷
=
=
÷20%=（
+
）×20=
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