摘要：(1)54÷18+41×3 (2)16×5-80÷16 =3+41×3 =80-80÷16 =44×3 =0÷16 =132 ( ) =0 ( ) (3)640+360÷60+40 =1000÷100 =5× =10 ( ) =5×820 =4100( )

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