1-(-5)×(-79/7)-5×79/9 简便运算
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1-(-5)×(-79/7)-5×79/9 简便运算
1-(-5)×(-79/7)-5×79/9 简便运算
1-(-5)×(-79/7)-5×79/9 简便运算
1-(-5)×(-79/7)-5×79/9
=1-5×79/7-5×79/9
=1-5×79×(1/7+1/9)
=1-395×16/63
=1-6320/63
=-6257/63
1-(-5)×(-79/7)-5×79/9 简便运算
-5×(-8又7/9)-(-7)×(+79/9)+12÷-(-9/79)-5×(-8又7/9)-(-7)×(+79/9)+12÷(-9/79)
-1的四次方-(-5)*(-8又7/9)+(-7)*(+79/9)-12/(-9/79)
计算.(-5)×(-87/9)-(-7)×(+79/9)+12÷(-9/79)不好意思,问题弄错了应该是(-5)×(-79/9)-(-7)×(+79/9)+12÷(-9/79)
(4又79分之27×5.875+5又8分之7×79分之52)÷27又6分之1
1+3+5+.77+79=
79/1/79等于?
1+1+2+3+4+5+6+7+8+99+100-79+97等于多少
1+2-3-4+5+6-7-8+9+.+78-79-80+81 这道题简便运算
1-2=-3 2-3=-5 3-4=-7 78-79=?
1/{6-[2/(7-(3/(X-(4/5))))]}==79/450
1+3-5-7+9+11-13-15+17……-79+81=?
-5,7,-29,79,-245后面的三个数是什么?
-5,7,-29,79,-245后面的三个数是什么?
-5,7,-29,79,-245.这些数有什么规律?
初一数学:观察下面数 -5,7,-29,79,-245,...;
(1/2-5)²=1/3(79-x)
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