(-2.48)+(+4.33)+(-7.52)+(-4.33)=

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(-2.48)+(+4.33)+(-7.52)+(-4.33)=
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(-2.48)+(+4.33)+(-7.52)+(-4.33)=
(-2.48)+(+4.33)+(-7.52)+(-4.33)=

(-2.48)+(+4.33)+(-7.52)+(-4.33)=


(-2.48)+(4.33)+(-7.52)+(4.33)
=-2.48+4.33-7.52+4.33
=-2.48-7.52+4.33+4.33
=-(2.48+7.52)+(4.33+4.33)
=-10+8.66
=-1.34
望采纳,谢谢

-10

???

10

答案是:(-10)对吗

-10

是负十

-10

(-2.48)+(+4.33)+(-7.52)+(-4.33)= 简算的问题:1、3.124+12.56-5.89 2、15.23-(3.1+0.85) 3、76.102-18.147+2.93 4、7.5-(7.5-2.48) 5、9.92+4.26-9.92 计算:(+1)+(-3)+(+5)+(-7)+⋯+(+97)+(-99) (+1)+(-2)+(+3)+(-4)++(+99)+(-100)等于几? (-2)+4+(-6)+8++(-98)+100等于几? 1+(-2)+3+(-4)+5+(-6)+…+2003+(-2014) (-1)+2+(-3)+4+(-5)+6+⋯+2010+(-2011) 请猜想1+3+5+7.+(2n-1)+(2n+1)+(2n+3)= (只填乘方形式)请用上述规律计算103 +105 +107 +...+2003+ 2005 1+(-2)+3(-4)+5+(-6)+……+2003+(-2014)简便计算 - |- 0.25 |+(+4分之3)-(-0.125)+|-0.75| (-90)+(-89)+(-88)+…+(+99)+(+100)怎么算? (1988+1986+.+6+4+2)-(1+3+5+.+1987)简便运算 2.48×56%+2.48×44%= (+23)+(-27)+(+9)+(-5)快!脱式计算! (9999+9997+.+9001)-(1+3+.+999)如题 3+(-6)+6+(-9)+9+⋯+27+(-30)简便计算? (1+123+234)×(123+234+345)-(1+123+234+345)×(123+234) (1000+123+234)×(123+234+345)-(1000+123+234+345)×(123+234)简便运算