写出由6、9、0这三个数字组成不同的三位数，并把它们从大到小排列．
直接写得数+=﹣= 1÷= 7×=×3=+=﹣=÷=÷4= 3÷=+= 18×=
直接写出得数：﹣= 0×=÷1= 24.26+0.4=
直接写出得数 +=﹣= 12×=×14= 20÷=×= 0×=÷=÷×12= 14×÷14×=
直接写出得数 1÷=+=÷=÷=×=+0.8=÷1=×=+=﹣= 24÷=÷=
计算×=÷=××÷6÷÷× 15×÷××16÷÷．
+
=
﹣
= 1÷
= 7×
=
×3=
+
=
﹣
=
÷
÷4= 3÷
=
+
= 18×
=
﹣
=
=
÷1=
+
=
﹣
= 12×
=
×14= 20÷
=
×
= 0×
=
÷
=
÷
×12= 14×
÷14×
=
+
=
÷
=
÷
×
=
+0.8=
÷1=
×
=
+
=
﹣
=
=
×
=
÷
=
×
×
÷6÷
÷
15×
÷
×
×16
÷
÷
．
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