问题 解答题
脱式计算.
1000-71×8

(1800-800)×4

19×96-962÷74
(639-71×9)÷167(10800-800×4)÷410000-(59+66)×64.
答案

(1)1000-71×8,

=1000-568,

=432;

(2)(1800-800)×4,

=1000×4,

=4000;

(3)19×96-962÷74,

=1824-13,

=1811;

(4)(639-71×9)÷167,

=(639-639)÷167,

=0÷167,

=0;

(5)(10800-800×4)÷4,

=(10800-3200)÷4,

=7600÷4,

=1900;

(6)10000-(59+66)×64,

=10000-125×64,

=10000-125×8×8,

=10000-1000×8,

=10000-8000,

=2000.

单项选择题
判断题