我会计算.
(1)
(2)
(3)
(4)
(5)
(6).
网友回答
解:(1)=;
(2),
=××,
=;
(3),
=×,
=;
(4)+(11.7-8.4×),
=+(11.7-8.4×)×,
=+(×-8.4××),
=+(9-8.4),
=0.5+0.6,
=1.1;
(5)(+0.25-)×,
=×+×-×,
=+-,
=,
=;
(6),
=(3.4+2.6)×,
=6×,
=11.
解析分析:(1)(3)根据分数乘法的计算方法,计算得解;
(2)运用乘法交换律和结合律简算;
(4)把改写成×,进而逆用乘法分配律简算,最后再算加法;
(5)(6)运用乘法分配律简算.
点评:此题是考查数的四则混合运算,要仔细观察算式的特点,灵活运用一些定律进行简便计算.