问题 解答题

计算下面各题,怎样简便就怎样算.

432÷36+12×2

3000÷25÷4

8.46-2.25-3.75

72×125

135×67-67×35

812÷(532-36×14)

答案

(1)432÷36+12×2,

=12+24,

=36;

(2)3000÷25÷4,

=3000÷(25×4),

=3000÷100,

=30;

(3)8.46-2.25-3.75,

=8.46-(2.25+3.75),

=8.46-6,

=2.46;

(4)72×125,

=(8×9)×125,

=8×125×9,

=1000×9,

=9000;

(5)135×67-67×35,

=(135-35)×67,

=100×67,

=6700;

(6)812÷(532-36×14),

=812÷(532-504),

=812÷28,

=29.

单项选择题
单项选择题