计算,能简便的简便运算. 17×(+)×150×+×××64+×44-72×.
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解:17×=(16-1)×,
=16×-
=;
(+)×150
=×150+×150
=24+16,
=40;
×+×,
=×(+),
=×,
=
××64,
=×(×64),
=×8,
=10;
+×,
=×(1+),
=×,
=;
44-72×,
=44-30,
=14.
解析分析:(1)(2)(3)(4)(5)利用乘法分配律解答;
(6)先算乘法再算减法;
据此解答即可.
点评:此题考查了分数的加减乘除运算,根据规律,能简算的要简算.