题文
67+198= 200×0.24= 51.6÷6= 100﹣27.69=
×
= 
÷
= 
+
= 5﹣
=
0÷
÷
= 1÷
×
= 9×
÷9×
= 40%﹣
=
67+198= 200×0.24= 51.6÷6= 100﹣27.69=×= ÷= += 5﹣=
0÷÷= 1÷×= 9×÷9×= 40%﹣=
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