(-6)+(-8)-(-5)计算
1)(-6)+(-8)-(-5)(2)(-41)-(-10)-(-54)-(-32)(3)(+1/3)+(-1/2)-(-1/3)+(-3/4)-(-1/4)(4)7.2...
1) (-6)+(-8)-(-5)
(2) (-41)-(-10)-(-54)-(-32)
(3) (+1/3)+(-1/2)-(-1/3)+(-3/4)-(-1/4)
(4) 7.2+(-1.8)-(-0.8)
(5) 0.5+(-1/4)-(-2.75)+(+1/2)
(6) 0.6-1/4-(-3.75)+2/5
(7) (-2/5)+(-3又4/7)-1.6-(-11/7)
(8) -6/7+1.5-1/7
要有步骤的哦!~ 展开
(2) (-41)-(-10)-(-54)-(-32)
(3) (+1/3)+(-1/2)-(-1/3)+(-3/4)-(-1/4)
(4) 7.2+(-1.8)-(-0.8)
(5) 0.5+(-1/4)-(-2.75)+(+1/2)
(6) 0.6-1/4-(-3.75)+2/5
(7) (-2/5)+(-3又4/7)-1.6-(-11/7)
(8) -6/7+1.5-1/7
要有步骤的哦!~ 展开
展开全部
1) (-6)+(-8)-(-5)
=-6-8+5
=-11
(2) (-41)-(-10)-(-54)-(-32)
=-41+10+54+32
=55
(3) (+1/3)+(-1/2)-(-1/3)+(-3/4)-(-1/4)
=1/3-1/2+1/3-3/4+1/4
=2/3-2/4-1/2
=2/12-1/2
=-1/3
(4) 7.2+(-1.8)-(-0.8)
=7.2-1.8+0.8
=6.2
(5) 0.5+(-1/4)-(-2.75)+(+1/2)
=1/2-1/4+11/4+1/2
=1+5/2
=7/2
(6) 0.6-1/4-(-3.75)+2/5
=3/5-1/4+15/4+2/5
=1+7/2
=9/2
(7) (-2/5)+(-3又4/7)-1.6-(-11/7)
=-2/5-25/7-8/5+11/7
=-2-2
=-4
(8) -6/7+1.5-1/7
=-6/7+3/2-1/7
=-1+2/3
=-1/3
1) (-6)+(-8)-(-5) = -9
(2) (-41)-(-10)-(-54)-(-32)=55
(3) (+1/3)+(-1/2)-(-1/3)+(-3/4)-(-1/4) = -2/6
(4) 7.2+(-1.8)-(-0.8) =6.2
(5) 0.5+(-1/4)-(-2.75)+(+1/2) =5
(6) 0.6-1/4-(-3.75)+2/5 =4.5
(7) (-2/5)+(-3又4/7)-1.6-(-11/7) =-4
(8) -6/7+1.5-1/7=0.5
参考资料:自己做的~~~~~~
=-6-8+5
=-11
(2) (-41)-(-10)-(-54)-(-32)
=-41+10+54+32
=55
(3) (+1/3)+(-1/2)-(-1/3)+(-3/4)-(-1/4)
=1/3-1/2+1/3-3/4+1/4
=2/3-2/4-1/2
=2/12-1/2
=-1/3
(4) 7.2+(-1.8)-(-0.8)
=7.2-1.8+0.8
=6.2
(5) 0.5+(-1/4)-(-2.75)+(+1/2)
=1/2-1/4+11/4+1/2
=1+5/2
=7/2
(6) 0.6-1/4-(-3.75)+2/5
=3/5-1/4+15/4+2/5
=1+7/2
=9/2
(7) (-2/5)+(-3又4/7)-1.6-(-11/7)
=-2/5-25/7-8/5+11/7
=-2-2
=-4
(8) -6/7+1.5-1/7
=-6/7+3/2-1/7
=-1+2/3
=-1/3
1) (-6)+(-8)-(-5) = -9
(2) (-41)-(-10)-(-54)-(-32)=55
(3) (+1/3)+(-1/2)-(-1/3)+(-3/4)-(-1/4) = -2/6
(4) 7.2+(-1.8)-(-0.8) =6.2
(5) 0.5+(-1/4)-(-2.75)+(+1/2) =5
(6) 0.6-1/4-(-3.75)+2/5 =4.5
(7) (-2/5)+(-3又4/7)-1.6-(-11/7) =-4
(8) -6/7+1.5-1/7=0.5
参考资料:自己做的~~~~~~
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1)(-6)+(-8)-(-5)=-6-8-5=-19
2)(-41)-(-10)-(-54)-(-32)=-41+10+54+32=55
3)(+1/3)+(-1/2)-(-1/3)+(-3/4)-(-1/4)=1/3-1/2+1/3-3/4+1/4=-1/3
4)7.2+(-1.8)-(-0.8)=7.2-1.8+0.8=6.2
5) 0.5+(-1/4)-(-2.75)+(+1/2)=0.5-0.25+2.75+0.5=3.5
6)0.6-1/4-(-3.75)+2/5=0.6-0.25+3.75+0.4=4.6
7)(-2/5)+(-3又4/7)-1.6-(-11/7)=-2/5-25/7-8/5+11/7=-4
8)-6/7+1.5-1/7=-6/7+3/2-1/7=1/2
2)(-41)-(-10)-(-54)-(-32)=-41+10+54+32=55
3)(+1/3)+(-1/2)-(-1/3)+(-3/4)-(-1/4)=1/3-1/2+1/3-3/4+1/4=-1/3
4)7.2+(-1.8)-(-0.8)=7.2-1.8+0.8=6.2
5) 0.5+(-1/4)-(-2.75)+(+1/2)=0.5-0.25+2.75+0.5=3.5
6)0.6-1/4-(-3.75)+2/5=0.6-0.25+3.75+0.4=4.6
7)(-2/5)+(-3又4/7)-1.6-(-11/7)=-2/5-25/7-8/5+11/7=-4
8)-6/7+1.5-1/7=-6/7+3/2-1/7=1/2
参考资料: 以后还是自己做吧,这只是基本的运算而已
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1) (-6)+(-8)-(-5)
=-6-8+5
=-11
(2) (-41)-(-10)-(-54)-(-32)
=-41+10+54+32
=55
(3) (+1/3)+(-1/2)-(-1/3)+(-3/4)-(-1/4)
=1/3-1/2+1/3-3/4+1/4
=2/3-2/4-1/2
=2/12-1/2
=-1/3
(4) 7.2+(-1.8)-(-0.8)
=7.2-1.8+0.8
=6.2
(5) 0.5+(-1/4)-(-2.75)+(+1/2)
=1/2-1/4+11/4+1/2
=1+5/2
=7/2
(6) 0.6-1/4-(-3.75)+2/5
=3/5-1/4+15/4+2/5
=1+7/2
=9/2
(7) (-2/5)+(-3又4/7)-1.6-(-11/7)
=-2/5-25/7-8/5+11/7
=-2-2
=-4
(8) -6/7+1.5-1/7
=-6/7+3/2-1/7
=-1+2/3
=-1/3
可以吗?^_^
=-6-8+5
=-11
(2) (-41)-(-10)-(-54)-(-32)
=-41+10+54+32
=55
(3) (+1/3)+(-1/2)-(-1/3)+(-3/4)-(-1/4)
=1/3-1/2+1/3-3/4+1/4
=2/3-2/4-1/2
=2/12-1/2
=-1/3
(4) 7.2+(-1.8)-(-0.8)
=7.2-1.8+0.8
=6.2
(5) 0.5+(-1/4)-(-2.75)+(+1/2)
=1/2-1/4+11/4+1/2
=1+5/2
=7/2
(6) 0.6-1/4-(-3.75)+2/5
=3/5-1/4+15/4+2/5
=1+7/2
=9/2
(7) (-2/5)+(-3又4/7)-1.6-(-11/7)
=-2/5-25/7-8/5+11/7
=-2-2
=-4
(8) -6/7+1.5-1/7
=-6/7+3/2-1/7
=-1+2/3
=-1/3
可以吗?^_^
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(1).原式=-6-8+5=-9
(2).原式=-41+10+54+32=55
(3).原式=1/3-1/2+1/3-3/4+1/4=-1/3
(4).原式=7.2-1.8+0.8=6.2
(5).原式=0.5-1/4+2.75+1/2=3.5
(6).原式=-0.6-1/4+3.75+2/5=3.3
(7).原式=-2/5-3又4/7-1.6+11/7=-4
(8).原式=-6/7+1.5-1/7=0.5
(2).原式=-41+10+54+32=55
(3).原式=1/3-1/2+1/3-3/4+1/4=-1/3
(4).原式=7.2-1.8+0.8=6.2
(5).原式=0.5-1/4+2.75+1/2=3.5
(6).原式=-0.6-1/4+3.75+2/5=3.3
(7).原式=-2/5-3又4/7-1.6+11/7=-4
(8).原式=-6/7+1.5-1/7=0.5
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1) (-6)+(-8)-(-5)
=-6-8+5
=-11
(2) (-41)-(-10)-(-54)-(-32)
=-41+10+54+32
=55
(3) (+1/3)+(-1/2)-(-1/3)+(-3/4)-(-1/4)
=1/3-1/2+1/3-3/4+1/4
=2/3-2/4-1/2
=2/12-1/2
=-1/3
(4) 7.2+(-1.8)-(-0.8)
=7.2-1.8+0.8
=6.2
(5) 0.5+(-1/4)-(-2.75)+(+1/2)
=1/2-1/4+11/4+1/2
=1+5/2
=7/2
(6) 0.6-1/4-(-3.75)+2/5
=3/5-1/4+15/4+2/5
=1+7/2
=9/2
(7) (-2/5)+(-3又4/7)-1.6-(-11/7)
=-2/5-25/7-8/5+11/7
=-2-2
=-4
(8) -6/7+1.5-1/7
=-6/7+3/2-1/7
=-1+2/3
=-1/3
累死了。满意吗?
=-6-8+5
=-11
(2) (-41)-(-10)-(-54)-(-32)
=-41+10+54+32
=55
(3) (+1/3)+(-1/2)-(-1/3)+(-3/4)-(-1/4)
=1/3-1/2+1/3-3/4+1/4
=2/3-2/4-1/2
=2/12-1/2
=-1/3
(4) 7.2+(-1.8)-(-0.8)
=7.2-1.8+0.8
=6.2
(5) 0.5+(-1/4)-(-2.75)+(+1/2)
=1/2-1/4+11/4+1/2
=1+5/2
=7/2
(6) 0.6-1/4-(-3.75)+2/5
=3/5-1/4+15/4+2/5
=1+7/2
=9/2
(7) (-2/5)+(-3又4/7)-1.6-(-11/7)
=-2/5-25/7-8/5+11/7
=-2-2
=-4
(8) -6/7+1.5-1/7
=-6/7+3/2-1/7
=-1+2/3
=-1/3
累死了。满意吗?
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