> 数学 >
5乘19又3分之2=( 用上简便计算)
人气:164 ℃ 时间:2020-01-28 03:11:30
解答
5×19又2/3
=5×(20-1/3)
=5×20-5× 1/3
=100- 5/3
=100-1又2/3
=98又1/3
推荐
猜你喜欢
© 2026 79432.Com All Rights Reserved.
电脑版|手机版