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平方根 vol.2

Authored by yuta nakai

Mathematics

9th Grade

Used 10+ times

平方根 vol.2
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6 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 49\sqrt{\frac{4}{9}}  を,根号を使わずに表しましょう。

 ±23\pm\frac{2}{3}  

 ±32\pm\frac{3}{2}  

 32\frac{3}{2}  

 23\frac{2}{3}  

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 0.25-\sqrt{0.25}  を、根号を使わずに表しましょう。

 0.5-0.5  

 0.050.05  

 ±0.5\pm0.5  

 0.05-0.05  

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

2の平方根を表しましょう。

2\sqrt{2}

2-\sqrt{2}

±2\pm\sqrt{2}

±2\pm2

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

0.81の平方根を表しましょう。

0.9

0.09-0.09

±0.9\pm0.9

±0.09\pm0.09

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 0.4\sqrt{0.4}  と0.4の大小を、不等号を使って表しましょう。

 0.4>0.4\sqrt{0.4}>0.4  

 0.4<0.4\sqrt{0.4}<0.4  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 7-\sqrt{7}  と 7-7  と 5-\sqrt{5}  の大小を、不等号を使って表しましょう。

  7<2<7-7<-\sqrt{2}<-\sqrt{7} 

 7<7<2-7<-\sqrt{7}<-\sqrt{2}  

 7<2<7-\sqrt{7}<-\sqrt{2}<-7  

 2<7<7-\sqrt{2}<-\sqrt{7}<-7  

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