根号を含む計算 vol.2

根号を含む計算 vol.2

9th Grade

5 Qs

quiz-placeholder

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根号を含む計算 vol.2

根号を含む計算 vol.2

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

Created by

yuta nakai

Used 3+ times

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5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

分母を有理化しなさい。
 17\frac{1}{\sqrt{7}} 

 77\frac{7}{\sqrt{7}}  

 77\frac{7}{7}  

 497\frac{\sqrt{49}}{\sqrt{7}}  

 77\frac{\sqrt{7}}{7}  

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

分母を有理化しなさい。
 48\frac{4}{\sqrt{8}} 

 8\sqrt{8}  

 428\frac{4\sqrt{2}}{8}  

 2\sqrt{2}  

 22\frac{\sqrt{2}}{2}  

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

次の計算をしなさい。(分母を有理化させて答えること)
 2÷6\sqrt{2}\div\sqrt{6} 

 33\frac{\sqrt{3}}{3}  

 246\frac{\sqrt{24}}{6}  

 3\sqrt{3}  

 13\frac{1}{\sqrt{3}}  

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

次の計算をしなさい。(根号の中は簡単な数にして答えること)
 72×257\sqrt{2}\times2\sqrt{5} 

 28528\sqrt{5}  

 141014\sqrt{10}  

 101410\sqrt{14}  

 140140  

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

次の計算をしなさい。(根号の中は簡単な数にして答えること)
 10×15\sqrt{10}\times\sqrt{15} 

 150\sqrt{150}  

 2152\sqrt{15}  

 565\sqrt{6}  

 656\sqrt{5}