25和37的和是多少?

STEM 数学 Challenge

Quiz
•
Education
•
6th Grade
•
Hard
CHONG Moe
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
52
60
45
62
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
简化分数4/8至最简形式。
2/4
3/6
5/10
1/2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
解决 x 的值:2x + 5 = 15
x = 10
x = 7
x = 3
x = 5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
计算长为8厘米,宽为5厘米的矩形的面积。
40平方厘米
10平方厘米
35平方厘米
42平方厘米
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
将2.5米转换为毫米。
2000毫米
3000毫米
2500毫米
1500毫米
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一个班级有30名学生,15名是女生。班级中男生的百分比是多少?
60%
50%
75%
40%
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪一个是质数:27,31,40,49?
40
27
49
31
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