乐淳丰
幼苗
共回答了16个问题采纳率:87.5% 举报
(1)25×125×40×8,
=(25×40)×(125×8),
=1000×1000,
=1000000;
(2)57×38+57×2,
=57×(38+2),
=57×40,
=2280;
(3)(20+8)×125,
=20×125+8×125,
=2500+1000,
=3500;
(4)(163+198)+402,
=163+(198+402),
=163+600,
=763;
(5)37×101,
=37×(100+1),
=37×100+37,
=3700+37,
=3737;
(6)44×25,
=11×4×25,
=11×(4×25),
=11×100,
=1100.
1年前
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