要计算过程:(-7)+11+3+(-2);3+(-5)+12+(-1)+(-9);(-0.3)+1.3+(-0.6)+(-3.1)+0.2;↓↓↓(+17又3/4)+(+9又5/11)+(-2.25)+(-17.5)+(-10又6/11);(-5)-(-2)+(-3);0-10-(-8)+(-2);

来源:学生作业帮助网 编辑:作业帮 时间:2024/08/03 12:00:22
要计算过程:(-7)+11+3+(-2);3+(-5)+12+(-1)+(-9);(-0.3)+1.3+(-0.6)+(-3.1)+0.2;↓↓↓(+17又3/4)+(+9又5/11)+(-2.25)+(-17.5)+(-10又6/11);(-5)-(-2)+(-3);0-10-(-8)+(-2);
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要计算过程:(-7)+11+3+(-2);3+(-5)+12+(-1)+(-9);(-0.3)+1.3+(-0.6)+(-3.1)+0.2;↓↓↓(+17又3/4)+(+9又5/11)+(-2.25)+(-17.5)+(-10又6/11);(-5)-(-2)+(-3);0-10-(-8)+(-2);
要计算过程:(-7)+11+3+(-2);3+(-5)+12+(-1)+(-9);(-0.3)+1.3+(-0.6)+(-3.1)+0.2;↓↓↓
(+17又3/4)+(+9又5/11)+(-2.25)+(-17.5)+(-10又6/11);(-5)-(-2)+(-3);0-10-(-8)+(-2);-4.5+1.8-6.5+3-4;(-15)÷(-3);(-12)÷-1/6);(-8)÷(-1/4);(-3)×(-9);(-1/2)×(-2);(-1又3/7)×(-3.5).

要计算过程:(-7)+11+3+(-2);3+(-5)+12+(-1)+(-9);(-0.3)+1.3+(-0.6)+(-3.1)+0.2;↓↓↓(+17又3/4)+(+9又5/11)+(-2.25)+(-17.5)+(-10又6/11);(-5)-(-2)+(-3);0-10-(-8)+(-2);
(+17又3/4)+(+9又5/11)+(-2.25)+(-17.5)+(-10又6/11)
=(17又3/4-2.25-17.5)+(9又5/11-10又6/11)
=-2-1又1/11
=10/11
(-5)-(-2)+(-3)
=-3-3
=-6
0-10-(-8)+(-2)
=-10+8-2
=-2-2
=-4
-4.5+1.8-6.5+3-4
=(-4.5-6.5)+1.8-1
=-11+0.8
=-10.2
(-15)÷(-3)
=15÷3
=5
(-12)÷(-1/6)
=12×6
=72
(-8)÷(-1/4)
=8×4
=32
(-3)×(-9)
=3×9
=27
(-1/2)×(-2)
1/2×2
=1
(-1又3/7)×(-3.5)
=10/7×3.5
=5

(-7)+11+3+(-2)=14-9=5
3+(-5)+12+(-1)+(-9)=15-15=0
(-0.3)+1.3+(-0.6)+(-3.1)+0.2=1.5-4=-2.5
(+17又3/4)+(+9又5/11)+(-2.25)+(-17.5)+(-10又6/11)
=17+9-20-10+0.75+5/11-6/11=-4-1/11
(-5)-(-2...

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(-7)+11+3+(-2)=14-9=5
3+(-5)+12+(-1)+(-9)=15-15=0
(-0.3)+1.3+(-0.6)+(-3.1)+0.2=1.5-4=-2.5
(+17又3/4)+(+9又5/11)+(-2.25)+(-17.5)+(-10又6/11)
=17+9-20-10+0.75+5/11-6/11=-4-1/11
(-5)-(-2)+(-3)=-8+2=-6
0-10-(-8)+(-2)=-12+8=-4
-4.5+1.8-6.5+3-4=-15+4.8=10.2
(-15)÷(-3)=5
(-12)÷-1/6)=72
(-8)÷(-1/4)=32(-3)×(-9)=27
(-1/2)×(-2)=1
(-1又3/7)×(-3.5)=-10/7×-7/2=5。

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