问题 解答题
怎样简便就怎样算;
168+52+48125×72(4+8)×25125×32×8136×99156×l0l-156.
答案

(1)168+52+48,

=168+(52+48),

=168+100,

=268;

(2)125×72,

=125×8×9,

=1000×9,

=9000;

(3)(4+8)×25,

=4×25+8×25,

=100+200,

=300;

(4)125×32×8,

=125×8×32,

=1000×32,

=32000;

(5)136×99,

=136×(100-1),

=136×100-136×1,

=13600-136,

=13464;

(6)156×l0l-156,

=156×(101-1),

=156×100,

=15600.

完形填空
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