สอบปลายภาค ม1

สอบปลายภาค ม1

7th Grade

25 Qs

quiz-placeholder

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สอบปลายภาค ม1

สอบปลายภาค ม1

Assessment

Quiz

Mathematics

7th Grade

Practice Problem

Hard

Created by

Atthachai Wanit

Used 28+ times

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25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

กำหนดให้ a และ b เป็นจำนวนจริงที่ไม่เท่ากับศูนย์ m และ n เป็นจำนวนเต็มบวก ข้ดใดต่อไปนี้ถูกต้อง

am × an = am×na^m\ \times\ a^n\ \ =\ \ a^{m\times n}

(am)n = am+n\left(a^m\right)^n\ \ \ =\ \ a^{m+n}

aman = amn\frac{a^m}{a^n}\ =\ a^{m-n}

ambn =( ab)mn\frac{a^m}{b^n}\ =\left(\ \frac{a}{b}\right)^{m-n}

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

ข้อใดต่อไปนี้ผิด

34=813^4=81

(7)2 = 49-\left(-7\right)^2\ =\ -49

(23)2 = 49\left(-\frac{2}{3}\right)^2\ =\ \frac{4}{9}

(5)3 = 125-\left(-5\right)^3\ \ =\ -125

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

ข้อใดต่อไปนี้ถูกต้อง

223=49\frac{2^2}{3}=\frac{4}{9}

(2)4 = 16\left(-2\right)^4\ \ =\ -16

(7)5 = 75\left(-7\right)^5\ =\ 7^5

(3)8 = 38\left(-3\right)^8\ =\ \ 3^8

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

ข้อใดมีค่ามากที่สุด

(5)2\left(-5\right)^2

242^4

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

(3)2\left(-3\right)^2

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

ข้อใดมีค่าน้อยที่สุด

(2)6\left(-2\right)^6

(6)2\left(-6\right)^2

(4)2-\left(-4\right)^2

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

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 (23)3\left(\frac{2}{3}\right)^3  แทนจำนวนใด

 69\frac{6}{9}  

 827\frac{8}{27}  

 627\frac{6}{27}  

 63\frac{6}{3}  

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 757^5  มีความหมายตรงกับข้อใด

 7+7+7+7+77+7+7+7+7  

 7×7×7×7×77\times7\times7\times7\times7  

 5×5×5×5×5×5×55\times5\times5\times5\times5\times5\times5  

 7×57\times5  

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