一个长方形长75米，长是宽的3倍，这个长方形的面积是多少平方米？
直接写出得数：9.1﹣1.9= 7.2÷0.6= 0.25×8= +=×= ÷= ﹣= 52=．
直接写得数．9﹣2.64= 56÷0.56= ×12= 630×9%=÷= 1﹣= += 0×÷=
直接写得数．12.5+3.5= 87.05÷0.5= ×= 18÷0.03=×= += 2﹣= 13.2×0.5=×14= ÷=
直接写得数．1.4+1.5= 1﹣0.611= 1÷67= 1.6﹣13%=12：16= 0÷35= 0.9+99×0.9= （56+14）×12=
直接写出得数．×80= 99÷= 9.6×= ÷= 7÷=÷= ×÷= ×÷×= ×0+= ×÷=
+
=
×
= 
÷
= 
﹣
= 52=．
×12= 630×9%=
÷
= 1﹣
= 
+
= 0×
÷
=
×
= 18÷0.03=
×
= 
+
= 2﹣
= 13.2×0.5=
×14= 
÷
=
×80= 99÷
= 9.6×
= 
= 7÷
=
÷
= 
×
÷
= 
×
÷
= 
×0+
= 
×
÷
=
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