> 数学 >
0.495×250+495×0.24+51×4.95
人气:265 ℃ 时间:2020-02-03 20:21:56
解答
0.495×250+495×0.24+51×4.95
=495×0.25+495×0.24+0.51×495
=495×(0.25+0.24+0.51)
=495×1
=495
推荐
猜你喜欢
© 2026 79432.Com All Rights Reserved.
电脑版|手机版