题目内容

【题目】计算下面各题,能简算的要简算.

(1)1024﹣384÷16×13

(2)73×0.125+27×12.5%

(3)0.78×96﹣0.78+0.78×5

(4)10000÷125÷25÷8÷4

(5)

÷2015

(6)+ + + +

【答案】(1)解: 1024384÷16×13

=102424×13

=1024312

=712

2)解:73×0.125+27×12.5%

=73+27×0.125

=100×0.125

=12.5

3)解:0.78×960.78+0.78×5

=0.78×961+5

=0.78×100

=78

4)解:10000÷125÷25÷8÷4

=10000÷125×8÷25×4

=10000÷1000÷100

=10÷100

=0.1

5)解: ÷2015

= ×

=

=

=

6)解: + + + +

= + + + +

= + + + +

=

=

【解析】(1)先算除法,再算乘法,最后算减法;(2)(3)根据乘法分配律简算;(4)根据除法的性质简算;(5)先把带分数化成假分数,再根据分数除法的计算方法和乘法分配律进行变形、约分从而得解;(6 = = = = = ,由此把各个加数拆分,再相互抵消,从而求解.

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