计算-0.5-(-3又1\/4)+2.75-(+7又1\/2)
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(-0.5)-(-3 又1\/4)+2.75-(+7又1\/2)=多少 求过程
原式等于括号1\/4+括号3又1\/4括号+2又3\/4+括号负7又2\/4括号再等于括号1\/4+3又1\/4+2又3\/4括号+7又2\/4等于6又2\/4+括号负7又2\/4括号等于负一
-0.5-(-3又4分之1)+2.75-(+7又2分之1)怎么算?
-0.5-(-3又4分之1)+2.75-(+7又2分之1)=-0.5+3.25+2.75-7.5=-2 (-3分之2)-(+12分之1)-(-4分之1)=-12分之8-12分之1+12分之3=-2分之1 -0.5-(-3又4分之1)+2.75-(+7又2分之1)=-0.5+3.25+2.75-7.5=-2 -1又3分之2+(...
-0.5-(-3又4分之1)+2.75-(+7又2分之1)过程,急急急!
-0.5-3又4分之1+2.75-(+7又2分之1)=-0.5-3.25+2.75-7.5 =-(0.5+3.25-2.75+7.5)=-(3.75-2.75+7.5)=-(1+7.5)=-8.5
负0.5减负三又四分之一加2.75减七又二分之一等于几? 要过程。。
-0.5-(-2又1\/4)+2.75-7又1\/2 =-0.5+2.25+2.75-7.5 =-(0.5+7.5)+(2.25+2.75)=-8+5 =-3 例如:-0.5-(-3又1\/4)-(-2.75)-(+7又1\/2)=(-0.5-7又1\/2)+(3又1\/4+2.75)=-8+6 =-2
有理数加减法运算-0.5-(-3 1\/4)+2.75-(+7 1\/2)怎么解?
-0.5-(-3 1\/4)+2.75-(+7 1\/2)=-0.5+3.25+2.75-7.5 =-(0.5+7.5)+(3.25+2.75)=-8+6 =-2
(-0.5)-(-3又4分之1)+2.75-(7又2分之1)
(-0.5)-(-3又4分之1)+2.75-(7又2分之1)=-0.5+3.25+2.75-7.5 =(-0.5-7.5)+(3.25+2.75)=-8+6 =-2
有理数加减法运算-0.5-(-3 1\/4)+2.75-(+7 1\/2)怎么解 急
-0.5-(-3 1\/4)+2.75-(+7 1\/2)=-0.5+3 1\/4+2.75-7 1\/2 =-0.5+2.75+3 1\/4-7 2\/4 =2.25-4 1\/4 =-2
-O.5-(-三又四分之一)+2.75-(+七又二分之一)
-O.5-(-三又四分之一)+2.75-(+七又二分之一)=-0.5+3.25+2.75-7.5 =(3.25+2.75)-(0.5+7.5)=6-8 =-2
-0.5-(-3又4分子1)+2.75-+7又2分之1
-0.5-(-3又4分子1)+2.75-+7又2分之1 = -1\/2 + 13\/4 + 2 + 3\/4 + 15\/2 = -1\/2 + 15\/2 + 2 + 3\/4+ 13\/4 = 7 +2 + 16\/4 = 9 +4 = 13 施主,我看你骨骼清奇,器宇轩昂,且有慧根,乃是万中无一的武林奇才.潜心修习,将来必成大器,鄙人有个...