脱式计算72×7÷8    872÷(4×2) (557-217)÷5 248+399...

2025-06-29 04:33:26
推荐回答(1个)
回答1:

(1)72×7÷8
=504÷8
=63;

(2)872÷(4×2)
=872÷8
=109;

(3)(557-217)÷5
=340÷5
=68;

(4)248+399÷7
=248+57
=305;

(5)16×(34+55)
=16×89
=1424;

(6)1984-72÷2
=1984-36
=1948.