初一数学题 +-(&*^%@$#&%^(&^_*&##
-5.4+0.2-0.6+0.8=
3-(11-2)=
-5.13+4.62+(-8.47)-(-2.3)=
参考答案:-5.4+0.2-0.6+0.8= -5
3-(11-2)= -6
-5.13+4.62+(-8.47)-(-2.3)=-6.68
-5.4+0.2-0.6+0.8=
3-(11-2)=
-5.13+4.62+(-8.47)-(-2.3)=
参考答案:-5.4+0.2-0.6+0.8= -5
3-(11-2)= -6
-5.13+4.62+(-8.47)-(-2.3)=-6.68