问题 解答题
脱式计算
(1)864÷24-4×7(2)(2028-47×36)÷28
(3)(45+36)÷(171÷19)(4)(2560÷8-137)×45
答案

(1)864÷24-4×7,

=36-28,

=8;

(2)(2028-47×36)÷28,

=(2028-1692)÷28,

=336÷28,

=12;

(3)(45+36)÷(171÷19),

=81÷9,

=9;

(4)(2560÷8-137)×45,

=(320-137)×45,

=183×45,

=8235.

判断题
名词解释