小明妈妈月初买了20千克大米半个月后
小明妈妈月初买了20千克大米半个月后
小明妈妈月初买了20千克大米半个月后还剩3分之一。按此估计，到月底还需买多少大米？
数学堂堂练六年级上第41页第2题 今天要回答
小明妈妈月初买了20千克大米半个月后还剩3分之一。按此估计，到月底还需买多少大米？
数学堂堂练六年级上第41页第2题 今天要回答
数学人气：644 ℃时间：2020-01-29 09:59:59
优质解答
20*(1-1/3)*2-20=20/3=6.7KG
我来回答
类似推荐
猜你喜欢
- 1已知ab互为相反数,cd互为倒数,求（a-b）（a+b)/a方+b方-根号cd的值
- 2英文翻译（需要两种或两种以上写法）：尽管如此,但是……
- 3god grant me the serenity to accept the things i cannot change,the courage to change the 是谁说的
- 4Na2SO3和H2SO4反应有离子方程式吗
- 5饲养场养灰兔是白兔的3.5倍,灰兔比白兔多75只,养白兔多少只?方程,
- 6as soon as he got to the USA,he began to learn how to drive.Now he has____a car well.
- 7He doesn't want,but his mother tells him to stay at home.(同义转换)
- 8概括《卖火柴的小女孩》这篇故事,要简洁
- 9".When"their teams"can't win the game,they are even _____ than the players themselves.
- 10一批苹果有2吨,第一天卖了9分之2,第二天卖6分之1了,还剩几分之几?我要算式 答案是18分之11