①90-27=
②38+49=
③50-11=
④16+28+39=
⑤62-27-16=
⑥53-30+14=
⑦※44+49=
⑧※92-39=
⑨90-12+20=
⑩63÷8=
⑪32+28-40=
⑫42÷(90-83)=
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