(1)如果2005+(-200.5)=X+(20.05),那么X等于_______(2)1+(-2)+3+(-4)+.+2007+(-2008)=_________(3)9+(-7)+10+(-9)+(-3)=( )(4)6箱苹果,以每箱15KG为标准,超过的记为正数,不足的记为负数,称重如下:1.5,-2.3,+1.5,-0.8,+3.1,-2.4.则6箱
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![(1)如果2005+(-200.5)=X+(20.05),那么X等于_______(2)1+(-2)+3+(-4)+.+2007+(-2008)=_________(3)9+(-7)+10+(-9)+(-3)=( )(4)6箱苹果,以每箱15KG为标准,超过的记为正数,不足的记为负数,称重如下:1.5,-2.3,+1.5,-0.8,+3.1,-2.4.则6箱](/uploads/image/z/998936-8-6.jpg?t=%281%29%E5%A6%82%E6%9E%9C2005%2B%28-200.5%29%3DX%2B%2820.05%29%2C%E9%82%A3%E4%B9%88X%E7%AD%89%E4%BA%8E_______%282%291%2B%28-2%29%2B3%2B%28-4%29%2B.%2B2007%2B%28-2008%29%3D_________%283%299%2B%28-7%29%2B10%2B%28-9%29%2B%28-3%29%3D%28+%29%284%296%E7%AE%B1%E8%8B%B9%E6%9E%9C%2C%E4%BB%A5%E6%AF%8F%E7%AE%B115KG%E4%B8%BA%E6%A0%87%E5%87%86%2C%E8%B6%85%E8%BF%87%E7%9A%84%E8%AE%B0%E4%B8%BA%E6%AD%A3%E6%95%B0%2C%E4%B8%8D%E8%B6%B3%E7%9A%84%E8%AE%B0%E4%B8%BA%E8%B4%9F%E6%95%B0%2C%E7%A7%B0%E9%87%8D%E5%A6%82%E4%B8%8B%3A1.5%2C-2.3%2C%2B1.5%2C-0.8%2C%2B3.1%2C-2.4.%E5%88%996%E7%AE%B1)
(1)如果2005+(-200.5)=X+(20.05),那么X等于_______(2)1+(-2)+3+(-4)+.+2007+(-2008)=_________(3)9+(-7)+10+(-9)+(-3)=( )(4)6箱苹果,以每箱15KG为标准,超过的记为正数,不足的记为负数,称重如下:1.5,-2.3,+1.5,-0.8,+3.1,-2.4.则6箱
(1)如果2005+(-200.5)=X+(20.05),那么X等于_______
(2)1+(-2)+3+(-4)+.+2007+(-2008)=_________
(3)9+(-7)+10+(-9)+(-3)=( )
(4)6箱苹果,以每箱15KG为标准,超过的记为正数,不足的记为负数,称重如下:1.5,-2.3,+1.5,-0.8,+3.1,-2.4.则6箱苹果的总质量为( )KG
(5)计算(写过程)
(1)(-38)+52+118+(-62);
(2)(-41)+/-25/+(-74)+/-12/+/-2+5/
(3)0.75+(-2又4分之3)+(+0.125)+(-12又7分之5)+(4又8分之1)
(6)5.6+(-0.9)+4.4+(-8.1)+(-1)
(不用写过程)(7)不小于-5且不大于3的所有整数的和为( )
(8)A的相反数是最大的负整数,B与A的距离为3个单位长度,则A+B+(-3)=( )
(9)绝对值大于3.2且不大于8的所有非正整数的和为( )
(-25)+/-54/+/-46/+(-75)(写过程)
(10)63+72+(-96)+(-37)写过程
(11)(-301)+125+301+(-75)写过程
(12)(-52)+24+(-74)+12写过程
(1)如果2005+(-200.5)=X+(20.05),那么X等于_______(2)1+(-2)+3+(-4)+.+2007+(-2008)=_________(3)9+(-7)+10+(-9)+(-3)=( )(4)6箱苹果,以每箱15KG为标准,超过的记为正数,不足的记为负数,称重如下:1.5,-2.3,+1.5,-0.8,+3.1,-2.4.则6箱
1784.45
-1004
0
1.5-2.3+1.5-0.8+3.1-2.4=0.6 0.6*6*15=54kg
(-38)+52+118+(-62);
=[52+118]-[38+62]
=170-100
=70
(-41)+/-25/+(-74)+/-12/+/-2+5/
=-47+25-74+12+3
=-81
0.75+(-2又4分之3)+(+0.125)+(-12又7分之5)+(4又8分之1)
=4分之3-2又4分之3+8分之一-12又7分之5+4又8分之1
=-2+4又8分之2-12又7分之5
太简单,我只写难题
[7]-9
8 A=1 B=4或-2 A+B+(-3)=(2或 -4]
[9]-30
计算太简单,自己算