问题 解答题
下面各题怎样简便就怎样算.
①125×32×25②32.62-2.25-3.75③146×34+34×54
④85×102⑤6000÷125÷8⑥672-36+64.
答案

①125×32×25,

=125×(8×4)×25,

=(125×8)×(4×25),

=1000×100,

=100000;

②32.62-2.25-3.75,

=32.62-(2.25+3.75),

=32.62-6,

=26.62;

③146×34+34×54,

=(146+54)×34,

=200×34,

=6800;

④85×102,

=85×(100+2),

=85×100+85×2,

=8500+170,

=8670;

⑤6000÷125÷8,

=6000÷(125×8),

=6000÷1000,

=6;

⑥672-36+64,

=636+64,

=700.

单项选择题
单项选择题