3( )( )÷( )=3( )······8.3( )( )÷( )=3( )······8.

3( )( )÷( )=3( )······8.3( )( )÷( )=3( )······8. 急·····················1+2+3+...+999=? 27÷( )=( )······3 使等式成立 有几种填法 列出来 1+2++3+··········+10000= 下列说法错误的是····································································（ ）（A）画线段AB=3厘米； （B）画射线AB=3厘米；（C）在射线AC上截 变态数学题·······方程一道············x+2y+3z=1x=y+12x+3y+5z=2方程组············要过程············我解了之后总觉得无解····· 125*（ ）/3*8-10=1990 括号里填几守护甜心守护甜心守护甜心····································这只是为了引起大家注意，跟守护甜心没关系， 用紧张,······················紧张,······················紧张,······················造句,内容是要积极向上的~3Q 1/3+2/3=1,但0.333···+0.666···=0.999···,为神马?额······谁能解释一下······ x²-3x=0 ········ 2[4/3y—（2/3y—1/2）]=3/4y急·································!1 1 2 3 4 ·····7 ·······10 ········?1 3 5 7 ·····?······?··········290 1 4 9 ·····?······?··········? 化简(2×√3-π)÷√2(保留3个有效数字) 大哥大姐,帮帮忙啊··················化简，你那个我也会啊，真是············ 一直关于x的方程为3x+a=5-6x1 有唯一的解2 3 有无数个解急································那么当a b 满足什么条件时 计算1-3+5-7+9-11+··········+97-99= 32÷6=5······2 16÷3=5······1 被除数,除数,商,余数有什么变化?(用一句话表示） 10·28÷3·14÷2=? 用a way to造句急···········用·················3句