一个三角形的面积是47.25cm2，底边长12.6cm．它的高是多少厘米？
直接写出得数．==== 2÷3====
+=﹣=×= 14÷=÷=×=÷= 6×=
直接写得数： 1﹣= 9×=÷2=÷== 1=×1.3=×=
直接写出下面各题的得数．÷=== 1.25×0.8=== 1﹣30%= 5.4÷0.3= 9﹣0.56=
直接写出得数．﹣=÷6=÷= 6×=×=﹣=×=÷=
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= 14÷
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÷6=
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= 6×
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