试题:
201×2437×99+37125×(7×8),24×7×5×6.

答案:

我来补答
(1)201×24,
=(200+1)×24,
=200×24+1×24,
=4800+24,
=4824;

(2)37×99+37,
=37×(99+1),
=37×100,
=3700;

(3)125×(7×8),
=125×8×7,
=1000×7,
=7000;

(4)24×7×5×6,
=(24×7)×(5×6),
=168×30,
=5040.
 
 
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剩余:2000
这些题目你会做吗?