7th
grade

Mathematics

53%

accuracy

203

plays

陳嘉卿

5 years

Mathematics

7th

grade

分數的乘除

陳嘉卿

203
plays

15 questions

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1. Multiple Choice
1 minute
1 pt
- 1/ 3
1/ 3
-3
3
2. Multiple Choice
1 minute
1 pt
1/ 2
2
25 / 18
18 / 25
3. Multiple Choice
1 minute
1 pt
-2 / 3
- 1/ 6
1/ 6
2 / 3
4. Multiple Choice
1 minute
1 pt
- 3 / 4
- 4 / 3
3 / 4
4 / 3
5. Multiple Choice
1 minute
1 pt
- 15 / 2
- 2 / 15
2 / 15
15 / 2
6. Multiple Choice
1 minute
1 pt
- 1 / 8
- 8
1 / 8
8
7. Multiple Choice
1 minute
1 pt
- 1 / 5
1 / 5
5
-5
8. Multiple Choice
1 minute
1 pt
- 10 / 9
- 9 / 10
9 / 10
10 / 9
9. Multiple Choice
1 minute
1 pt
- 3 / 10
- 3 /20
3 / 20
3 / 10
10. Multiple Choice
2 minutes
1 pt
［(－2)³］⁴＝4^口，則口＝？
12
-12
-6
6
11. Multiple Choice
3 minutes
1 pt
已知A＝(－2)²⁴、B＝(－4)¹³、C＝(－8)⁶，則下列何者正確
C＞B＞A
B＞C＞A
A＞B＞C
A＞C＞B
12. Multiple Choice
3 minutes
1 pt
已知A＝3⁶⁰、B＝4⁴⁵、C＝5³⁰，則下列何者正確
A＞B＞C
A＞C＞B
C＞A＞B
B＞C＞A
13. Multiple Choice
3 minutes
1 pt
若a、b兩數滿足10^3a^＋2＝100^b^－2＝100000000，則下列關於a、b的敘述何者正確？
a是奇數
a是b的因數
a＋b是奇數
a＞b
14. Multiple Choice
2 minutes
1 pt
下列敘述哪些正確？
$5\frac{3}{4}$ 的倒數為 $5\frac{4}{3}$
1的倒數為－1
0的倒數為0
3的倒數為 $\frac{1}{3}$
兩數相乘等於1，那麼這兩個數就互為倒數
15. Multiple Choice
2 minutes
1 pt
選出正確的選項
$5^2\times5^4=5^8$
$(-3)^8\div(-3)^2=(-3)^6$
$(7^3)^2=7^5$
$25^3\times4^3=(25\times4)^3$
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