问题
选择题
(29.98+29.98+29.98+29.98)×0.25,下列解法中既正确又简便的是( )
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答案
(29.98+29.98+29.98+29.98)×0.25,
=(29.98×4)×0.25,
=29.98×(4×0.25);
故选:B.
(29.98+29.98+29.98+29.98)×0.25,下列解法中既正确又简便的是( )
|
(29.98+29.98+29.98+29.98)×0.25,
=(29.98×4)×0.25,
=29.98×(4×0.25);
故选:B.