
初中数学选择题
Quiz
•
Mathematics
•
7th Grade
•
Practice Problem
•
Medium
Zhu Zhu
Used 6+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
代数式a2+4b2用语言叙述正确的是
a的平方与b的平方的4倍的和
a的平方与4的和乘以b的平方
a与4b的和的平方
a与4b的平方和
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列式子中,符合代数式书写格式的是
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列各式中,不是代数式的是
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如图,要围一个矩形菜园ABCD,其中一边AD是墙,其余的三边AB、BC、CD用篱笆围成,且这三边的和为50米.若设BC的长a米,则AB的长度可以表示为
50-a
(50-2a)米
(20-a)米
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
九月开学季,书店开展优惠活动,某套名著原价为m元,现售价为(0.7m-10)元,则下列说法符合题意的是
原价减10元后再打7折
原价打7折后再减10元
原价打3折后再减10元
原价减10元后再打3折
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
11
7
-1
-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
对于代数式5+m的值,下列说法正确的是
比5大
比5小
比m大
比m小
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