计算,能简算的要简算.①36.25×101-36.25②-(-)+③36×+36×④0.75-+⑤-(+)⑥3+0.6+0.625+.

发布时间:2020-07-30 20:18:06

计算,能简算的要简算.
①36.25×101-36.25②-(-)+③36×+36×④0.75-+⑤-(+)⑥3+0.6+0.625+.

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解:①36.25×101-36.25,
=(101-1)×36.25,
=100×36.25,
=3625;

②-(-)+,
=-++,
=()+(),
=1+,
=1;

③36×+36×,
=()×36,
=1×36,
=36;

④0.75-+,
=0.75+-,
=1-,
=;

⑤-(+),
=,
=0-,
=-;

⑥3+0.6+0.625+,
=(3+0.625)+(0.6+),
=4+1,
=5.
解析分析:(1)(3)运用乘法分配律解答,(2)先运用减法性质,再运用加法交换律和加法结合律解答,(4)运用加法交换律解答,(5)运用减法性质解答,(6)运用加法交换律和加法结合律解答.

点评:正确选择并运用简便算法是解答本题的关键.
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