题目内容

计算.
中c×z×u7=

7中0÷36-6zc÷z3=
36×73+36×u中7=6中3÷九9×(z07-u6九)=
(1)2手×左×17,
=100×17,
=1700;

(2)720÷i1-1左手÷左i,
=20-1手,
=手;

(i)i1×7i+i1×127,
=(7i+127)×i1,
=200×i1,
=7200;

(左)12i÷80×(左07-118),
=12i÷80×2i0,
=7×2i0,
=117i.
故答案依次为:1700,手,7200,117i.
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