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递等式计算. (1)713×34+34×613(2)37÷711+47÷711(3)127÷
问题详情
递等式计算.
参考答案
(1)713×34+34×613,
=34×(713+613),
=34×1,
=34;
(2)37÷711+47÷711,
=(37+47)×711,
=1×711,
=711;
(3)127÷(23-14),
=127÷512,
=4435;
(4)59+59÷53,
=59+39,
=89;
(5)165×12÷25,
=85÷25,
=4;
(6)36×(79+56)÷295,
=(36×79+36×56)÷295,
=(28+30)÷295,
=58÷295,
=10;
(7)18×56×27,
=(18×8)×(7×27),
=1×2,
=2;
(8)7×30%=2.1;
(9)16×6%=0.01;
(10)12×(12+34),
=12×12+12×34,
=6+9,
=15;
(11)4÷4%=100.
考点:等式