计算:(有理数的加法)(-10)+(+6)=(+12)+(-4)=(-5)+(-7)=(+6)+(-9)=(-0.9)+(-2.7)=2/5+(-3/5)=(-1/3)+2/5=(-三又四分之一)+(-一又十二分之一)(-8)+10+2+(-1)=5+(-6)+3+9+
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![计算:(有理数的加法)(-10)+(+6)=(+12)+(-4)=(-5)+(-7)=(+6)+(-9)=(-0.9)+(-2.7)=2/5+(-3/5)=(-1/3)+2/5=(-三又四分之一)+(-一又十二分之一)(-8)+10+2+(-1)=5+(-6)+3+9+](/uploads/image/z/4247522-26-2.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9A%EF%BC%88%E6%9C%89%E7%90%86%E6%95%B0%E7%9A%84%E5%8A%A0%E6%B3%95%EF%BC%89%EF%BC%88-10%EF%BC%89%2B%EF%BC%88%2B6%EF%BC%89%3D%EF%BC%88%2B12%EF%BC%89%2B%EF%BC%88-4%EF%BC%89%3D%EF%BC%88-5%EF%BC%89%2B%EF%BC%88-7%EF%BC%89%3D%EF%BC%88%2B6%EF%BC%89%2B%EF%BC%88-9%EF%BC%89%3D%EF%BC%88-0.9%EF%BC%89%2B%EF%BC%88-2.7%EF%BC%89%3D2%2F5%2B%EF%BC%88-3%2F5%EF%BC%89%3D%EF%BC%88-1%2F3%EF%BC%89%2B2%2F5%3D%28-%E4%B8%89%E5%8F%88%E5%9B%9B%E5%88%86%E4%B9%8B%E4%B8%80%EF%BC%89%2B%EF%BC%88-%E4%B8%80%E5%8F%88%E5%8D%81%E4%BA%8C%E5%88%86%E4%B9%8B%E4%B8%80%EF%BC%89%EF%BC%88-8%EF%BC%89%2B10%2B2%2B%EF%BC%88-1%EF%BC%89%3D5%2B%EF%BC%88-6%EF%BC%89%2B3%2B9%2B)
计算:(有理数的加法)(-10)+(+6)=(+12)+(-4)=(-5)+(-7)=(+6)+(-9)=(-0.9)+(-2.7)=2/5+(-3/5)=(-1/3)+2/5=(-三又四分之一)+(-一又十二分之一)(-8)+10+2+(-1)=5+(-6)+3+9+
计算:(有理数的加法)
(-10)+(+6)=
(+12)+(-4)=
(-5)+(-7)=
(+6)+(-9)=
(-0.9)+(-2.7)=
2/5+(-3/5)=
(-1/3)+2/5=
(-三又四分之一)+(-一又十二分之一)
(-8)+10+2+(-1)=
5+(-6)+3+9+(-4)+(-7)=
(-0.8)+1.2+(-0.7)+(-2.1)+0.8+3.5=
1/2+(-2/3)+4/5+(-1/2)+(-1/3)=
计算:(有理数的加法)(-10)+(+6)=(+12)+(-4)=(-5)+(-7)=(+6)+(-9)=(-0.9)+(-2.7)=2/5+(-3/5)=(-1/3)+2/5=(-三又四分之一)+(-一又十二分之一)(-8)+10+2+(-1)=5+(-6)+3+9+
(-10)+(+6)=-4
(+12)+(-4)=8
(-5)+(-7)=-12
(+6)+(-9)=-3
(-0.9)+(-2.7)=-3.6
2/5+(-3/5)=-1/5
(-1/3)+2/5=1/15
(-三又四分之一)+(-一又十二分之一)=-13/3
(-8)+10+2+(-1)=3
5+(-6)+3+9+(-4)+(-7)=0
(-0.8)+1.2+(-0.7)+(-2.1)+0.8+3.5=1.9
1/2+(-2/3)+4/5+(-1/2)+(-1/3)=-1/5
-4
+8
-12
-3
-3.6
-1/5
1/15
-四又三分之一
+3
0
+1.9
-0.2
-4
8
-12
-3
-3.6
-1/5
1/15
-13/3
3
0
1.9
-1/5
(-10)+(+6)=-4
(+12)+(-4)=8
(-5)+(-7)=-12
(+6)+(-9)=-3
(-0.9)+(-2.7)=-3.6
2/5+(-3/5)=-1/5
(-1/3)+2/5=1/15
(-三又四分之一)+(-一又十二分之一)=-4又3分之1
(-8)+10+2+(-1)=3
5+(-6)+3+9+(-...
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(-10)+(+6)=-4
(+12)+(-4)=8
(-5)+(-7)=-12
(+6)+(-9)=-3
(-0.9)+(-2.7)=-3.6
2/5+(-3/5)=-1/5
(-1/3)+2/5=1/15
(-三又四分之一)+(-一又十二分之一)=-4又3分之1
(-8)+10+2+(-1)=3
5+(-6)+3+9+(-4)+(-7)=0
(-0.8)+1.2+(-0.7)+(-2.1)+0.8+3.5=1.9
1/2+(-2/3)+4/5+(-1/2)+(-1/3)=-1/5
就这样了
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以上几楼答案都对!!!
(-10)+(+6)= -4
(+12)+(-4)= 8
(-5)+(-7)= -12
(+6)+(-9)= -3
(-0.9)+(-2.7)= -3.6
2/5+(-3/5)= -1/5
(-1/3)+2/5= 1/15
(-三又四分之一)+(-一又十二分之一)= - 12/65
(-8)+10+2+(-1)= 3
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(-10)+(+6)= -4
(+12)+(-4)= 8
(-5)+(-7)= -12
(+6)+(-9)= -3
(-0.9)+(-2.7)= -3.6
2/5+(-3/5)= -1/5
(-1/3)+2/5= 1/15
(-三又四分之一)+(-一又十二分之一)= - 12/65
(-8)+10+2+(-1)= 3
5+(-6)+3+9+(-4)+(-7)= 0
(-0.8)+1.2+(-0.7)+(-2.1)+0.8+3.5= 0.9
1/2+(-2/3)+4/5+(-1/2)+(-1/3)= -1/5
不谢!
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