计算下面各题6.25-40÷16×2.510+24()[].

发布时间:2020-07-30 10:29:00

计算下面各题
6.25-40÷16×2.510+24()[].

网友回答

解:(1)6.25-40÷16×2.5
=6.25-40×2.5÷16,
=6.25-100÷16,
=6.25-6.25,
=0;

(2)10+24
=10+24×,
=10+9,
=19;

(3)()
=×2,
=;

(4)-×,
=-,
=;

(5)××
=××,
=1××,
=;

(6)[].
=[-]×,
=×,
=.
解析分析:算式(1)(5)可根据乘法交换律计算;算式(2)(3)(4)(6)根据四则混合运算的运算顺序计算即可,先算乘除,再算加减,有括号的要先算括号里面的.

点评:完成有关于分数的四则混合运算时要细心,注意通分约分.
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