求比一个数多百分之几的数是多少
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求比一个数多百分之几的数是多少. 学校图书室原有图书 1400 册,今年图书册数增加了 12% 。现在图书室有多少册图书?. 方法一: 1400 ×12%=168 (册) 1400+168=1568 (册). 方法二: 1400 × ( 1+12% ) =1400×112% =1568 (册). 答:现在图书室有 1568 册图书。.

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求比一个数多百分之几的数是多少

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6419893

求比一个数多百分之几的数是多少


1400 12

学校图书室原有图书1400册,今年图书册数增加了12%。现在图书室有多少册图书?

方法一:

1400×12%=168(册)

1400+168=1568(册)

方法二:

1400×(1+12%)

=1400×112%

=1568(册)

答:现在图书室有1568册图书。


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