> 数学 >
简便计算:302×99+138 = = =
人气:315 ℃ 时间:2020-03-28 16:05:17
解答
302×99+138
=302*(100-1)+138
=30200-302+138
=30338-302
=30036
推荐
猜你喜欢
© 2025 79432.Com All Rights Reserved.
电脑版|手机版