问题 解答题

用递等式计算.

150÷30×52

4200-8×307

765÷(80-29)

(78+16)×14.

答案

(1)150÷30×52,

=5×52,

=260;

(2)4200-8×307,

=4200-2456,

=1744;

(3)765÷(80-29),

=765÷51,

=15;

(4)(78+16)×14,

=94×14,

=1316.

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