Week 3 基础过关 Pearl
Authored by Zhu Zhu
Mathematics
7th Grade
Used 2+ times
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24 questions
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1.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
实数25的平方根是
(a)
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
若一个正数的平方根是2a﹣1和﹣3a+6，则a＝
(a)
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
一个正数的两个平方根分别是2m﹣1和3﹣m，则m的值为
(a)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
实数9的算术平方根是（ ）
3
±3
﹣9
5.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
a+b＝﹣1
a+b＝1
a+b＝2
a+b＝3
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
10
﹣10
3
﹣3
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