เลขยกกำลัง

เลขยกกำลัง

7th Grade

20 Qs

quiz-placeholder

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เลขยกกำลัง

เลขยกกำลัง

Assessment

Quiz

Mathematics

7th Grade

Hard

Created by

มธุตฤณ ปล้องพันธุ์

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

จำนวน -2,187 เขียนให้อยู่ในรูปเลขยกกำลังได้ดังข้อใด

373^7

737^3

(3)7\left(-3\right)^7

(7)3\left(-7\right)^3

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 4×8×324\times8\times32  เขียนให้อยู่ในรูปเลขยกกำลังได้ดังข้อใด

 848^4  

 464^6  

 2102^{10}  

 321232^{12}  

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

จำนวน [(0.2)2]3\left[\left(0.2\right)^2\right]^3  มีค่าเท่ากับข้อใด

0.00032

0.000064

- 0.00032

- 0.000064

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

จำนวน   72×3323×52×1(53×24×33)  \ \ \frac{7^2\times3^3}{2^3\times5^2}\times\frac{1}{\left(5^{-3}\times2^{-4}\times3^3\right)}\ \   มีค่าเท่ากับข้อใด

49

70

175

490

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

จำนวน (ab2)3(2a2)2\left(ab^2\right)^3\left(-2a^2\right)^2  มีค่าตรงกับข้อใด

 4a7b64a^7b^6  

 2a3b22a^3b^2  

 2a2b62a^2b^6  

 4a7b6-4a^7b^6  

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

จำนวน  a2021a0a^{2021}a^0  มีค่าตรงกับข้อใด

 aa  

 a2021a^{2021}  

 2a20212a^{2021}  

0

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

ข้อใดถูกต้อง

(2)4(3)3=24×33\left(-2\right)^4\left(3\right)^3=2^4\times3^3

(2)4(3)3=(23)×34\left(-2\right)^4\left(3\right)^3=\left(-2^3\right)\times3^4

(2)4(3)3=(24×33)\left(-2\right)^4\left(3\right)^3=-\left(2^4\times3^3\right)

(2)5(3)2=25×(3)2\left(-2\right)^5\left(3\right)^2=2^5\times\left(-3\right)^2

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