问题 解答题

计算下面各题,怎样简便就怎样计算,要写出必要的计算过程.

①44×25

②6200÷25÷4

③65×5-35÷5

④362-(16+27)×4

⑤51.27-8.66-1.34

⑥75+12.7+25+6.3.

答案

①44×25,

=11×4×25,

=11×(4×25),

=11×100,

=1100;

②6200÷25÷4,

=6200÷(25×4),

=6200÷100,

=62;

③65×5-35÷5,

=325-7,

=318;

④362-(16+27)×4,

=362-43×4,

=362-172,

=190;

⑤51.27-8.66-1.34,

=51.27-(8.66+1.34),

=51.27-10,

=41.27;

⑥75+12.7+25+6.3,

=(75+25)+(12.7+6.3),

=100+19,

=119.

单项选择题
单项选择题