
数学选择题
Authored by changhai li
Mathematics
7th Grade
Used 8+ times

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24 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
数轴上某一个点表示的数为a,比a小2的数用b表示,那么|a|+|b|的最小值为()
0
1
2
3
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列四个选项中,为负整数的是()
0
﹣0.5
﹣1.3
﹣3
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
若两数之积为负数,则这两个数一定是()
同为正数
同为负数
一正一负
无法确定
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
用四舍五入法把6.6954精确到百分位得到的近似数是()
6.7
6.70
6.695
6.80
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列各组数中,互为相反数的是()
﹣(﹣3)与3
3的4次方与4的3次方
|﹣4|与2的2次方的相反数
﹣5与﹣(-5)
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列说法正确的是()
0是整式
﹣a<0
是单项式
|a|>a
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
﹣a、b两数在数轴上的位置如图,下列结论正确的是()
a>0,b<0
a<b
|a|=﹣a,|b|=﹣b
|a|>|b|
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