1,判断:(1)对
(2)对
(3)错
(4)对
2.填空:(1) 2
(2) 1
(3) 0
(4) 24 2851
3.yuanshi=1*(-4)+(-1.5)/(-3)
=-1/4-0.5=-0.75
七年级数学同步一单元测试题
七年级数学同步一单元测试题
1.判断.
1.如果a,b互为相反数,那么ab〈0.
2.比-2大-1的数是-3.
3.两数相加,如果和小于每个加数,则这两个加数都是负数.
4.有理数a,b,c满足a+b=c,且c
1.判断.
1.如果a,b互为相反数,那么ab〈0.
2.比-2大-1的数是-3.
3.两数相加,如果和小于每个加数,则这两个加数都是负数.
4.有理数a,b,c满足a+b=c,且c
数学人气:722 ℃时间:2020-05-20 17:37:42
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