一个圆柱形水箱，从里面量底面周长是18.84米，高3米，它最多能装多少立方米水？（π取3.14）
直接写出得数0.25= 1.6+4= == 8÷0.2= == = =25×4×0×125=
直接写出得数．+= ﹣= ×2= ×= 54﹣54×0=×= ÷4= ÷= ÷42= 0÷25+2.5=×= ×14= ÷4= +÷+=
直接写出得数．3﹣2= 1÷= 321﹣178+257=0.875÷= 409×10﹣409= 2.25+7=（+）×18= 3+2.7+2+1.3=
口算、心算我最强+ × 8.4÷0.7 470﹣72﹣28 5÷﹣ +÷+ ×× ×25% 698﹣299．
直接写出得数．28+43= 4﹣1.5= 2.5×4= 23.4÷10=1.5+6﹣1.5= 1﹣= ﹣= 4.8÷12=÷= 3.9×5×=
= 1.6+4= 
=
= 8÷0.2= 
=
= 
= 
=
+
= 
﹣
= 
×2= 
×
= 54﹣54×0=
×
= 
÷4= 
= 
÷42= 0÷25+2.5=
×
= 
×14= 
÷4= 
+
+
= 1÷
= 321﹣178+257=
= 409×10﹣409= 2.25+7
+
+2.7+2
+1.3=
+
×
8.4÷0.7 470﹣72﹣28 5÷
+
×
×
×25% 698﹣299．
= 
﹣
= 4.8÷12=
= 3.9×5×
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