无
*注意事项:
3.68t=kg
+ =
5.4×=
﹣ =
6×3.14=
÷ =
39%+28%=
1﹣16%﹣54%=
①3.86+19.7+6.14
② + ÷
③28.26÷3.14×1.2
④ × ﹣ ÷
① :x= :
② x﹣ =0.25
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