某俱乐部男、女会员的人数之比是
,分为甲、乙、丙三组.已知甲、乙、丙三组的人数比是
,甲组中男、女会员的人数之比是
,乙组中男、女会员的人数之比是
.求丙组中男、女会员人数之比.
直接写得数
67÷31= 3.6×
= 57×
﹣
=
×0=
3÷
=0.75+
= 6.3÷
= 120×
=
直接写出下列各题的得数.
99×0= 2.5×0.4= 7.4﹣0.8=
×
=
÷
= 1÷
=
×50%= 2÷1.25=
直接写出得数:
365×14= 9﹣2.64= 56÷0.56=
×12= 5.6﹣6.6﹣19=
630×9%=
÷
= 5+(﹣
)=
×
÷
=
×
+
×
=
直接写出得数.
500÷125= 3.14×6= 5.4+46%= 36×25=
÷8=
÷50%= 3.14×202= 7.82﹣4
= 2﹣
+3+
=(
+
)×16=
直接写得数.
14×20= 2×
= 1+
﹣
=(
+
)×9=
72÷
= 1.5×100= 1.25×8= 99×0.8+0.8=