问题 解答题
算一算
72×40÷24840÷(126÷3)980-62×11(145+240)÷77
答案

(1)72×40÷24,

=2880÷24,

=120;

(2)840÷(126÷3),

=840÷42,

=20;

(3)980-62×11,

=960-682,

=278;

(4)(145+240)÷77,

=385÷77,

=5.

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