向爸爸和妈妈借钱还钱时怎么少了十块钱,大家帮我算一下,(请看详细描述)

2024-11-25 19:39:24
推荐回答(5个)
回答1:

。。。这个问题其实不能算是一个问题。
用个简单的比方,,就像我借你十块钱花光了,问十块钱跑哪去了。
其实是偷换概念了。而且里面的皮鞋这一重要因素呗忽略了
数学是严谨的。。列等式

500+500=1000
1000=970+30
1000-10-10=970+10
490+490=970+10
你看这个等式你就应该明白他把自己的十块钱和欠 父母的钱算在了一起
而不是和已经购买的皮鞋。。

回答2:

买皮鞋970元,再加上我的十元等于980元,分别欠爸爸妈妈的490元共980元……

回答3:

每个人借500又还10元相当于每个人借了490所以490*2=980只欠980而自己有470的皮鞋加上10元正好980和1000没有关系

回答4:

皮鞋九百七十元加十元也就九百八

回答5:

简单点,管a借五块,b五块钱,一共十块钱,买一块钱东西,还一人四块,手里剩下一块钱,一块钱去哪里了?数字变了,就会发现问题,借来的钱为正给出的为负,5+5-1-4-4等于1也就是你手里的一块钱,等式右面挪到左面应该变符号,也就是你手里的一块钱应该是负数,也就是这里的一和四为负数,五为正数,加减时候不能忘了符号,如题目,500+500-970-10-10等于10移过去500+500-970-10-10-10等于零,按题目加减负970等于负490加负490加上你手里的正数10固等式成立-970等于-490-490+10

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