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中3前期中間

Authored by Yoshiyuki SUZUKI

Mathematics

9th Grade

Used 5+ times

中3前期中間
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21 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

循環小数 0.5454540.545454 …を分数で表すとどれになるか?

611\frac{6}{11}

6111\frac{6}{111}

5499\frac{54}{99}

1833\frac{18}{33}

2.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

命題「無理数と無理数の和は無理数である」は真か偽か.

真

偽

3.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

xを越えない最大の整数を記号[x]で表す.

[-5.4]はいくつか?

-5

-6

5

6

4.

FILL IN THE BLANKS QUESTION

20 sec • 1 pt

2\sqrt[]{2} が無理数であることを証明するときに使う方法の名前は?

(a)  

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

3=1.732\sqrt[]{3}=1.732 , 30=5.477\sqrt[]{30}=5.477 のとき,

0.3\sqrt[]{0.3} の値を求めよ.

0.5477

0.1732

0.05477

0.01732

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

身長を測り1cm未満を四捨五入したとき,近似値 154cm を得た.

この身長の真の値 x はどんな範囲にあるか.

153.5≤x<154.5153.5\le x<154.5

153.5<x≤154.5153.5<x\le154.5

153<x≤154153<x\le154

154≤x<155154\le x<155

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

太陽と地球の距離 149600000km を a×10na\times10^n

( aa は 1 以上 10 未満, nn は整数)の形で表しなさい.

1.496×1081.496\times10^8 km

1.496×1051.496\times10^5 km

1496×1051496\times10^5 km

1.496×10101.496\times10^{10} km

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