1.几个小立方体黏在一起成一个大立方体6个面被涂成红色,if exactly 27 of small cubic blocks that make up the large cube have no paint on them ,how many cubic blocks make up the large cube?125}
2.in a sequence of nmbers,the first number is2and each number is 2 more than 3 times the preceding number.what's the forth number in the sequence?{答案80}
3.if40,404+x=44,444,then40,404-10x=?
4how many positive four-digit integers have 1 as their first digit and 2or 5as their last digit?{答案200}
5.Ifq and r are positive numbers,what percent of (q+1)is {答案100r/q+1%}
6.if a and b are integers such that a+b
人气:329 ℃ 时间:2020-04-29 10:17:56
解答
第一题很奇怪,我都没有看懂意思,你确定你抄写对了么,感觉句子和逻辑不对.2)在一组连续排列的数字中,如果第一个大头的数字是2,并且每一下数字都是前一个数字的3倍多2 的话,第四个数字是几.(algebra内容)按照要求,...
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