國三第一次模擬考 ch10 - ch11

國三第一次模擬考 ch10 - ch11

12th Grade

10 Qs

quiz-placeholder

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國三第一次模擬考 ch10 - ch11

國三第一次模擬考 ch10 - ch11

Assessment

Quiz

Mathematics

12th Grade

Hard

Created by

王 元松

Used 8+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

a=501 × 499,

b=4982 + 4 × 498+4,

c=5002 -1000+1,

則a、b、c的大小關係為何?

a>b>c

a>c>b

b>c>a

b>a>c

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

已知連續正奇數1+3+5+⋯+37=192

1+3+5+⋯+101=512

則 39+41+43+⋯+101 之值為何?

1960

2040

2160

2240

3.

FILL IN THE BLANK QUESTION

3 mins • 1 pt

3x−4y 是  81\sqrt{81}  的正平方根,
4x−7y 是 1的負平方根,
則 2x+3y 的值?

4.

FILL IN THE BLANK QUESTION

3 mins • 1 pt

已知 360\sqrt{360} ≓ 18.9⋯,若a、b皆正整數,

 360a\sqrt{360a}  、 360b\sqrt{360-b}  也皆為正整數,
則 a+b 的最小值為?

5.

FILL IN THE BLANK QUESTION

3 mins • 1 pt

Media Image

如圖,元松兒拿著25m長的梯子,在離牆7m處斜靠於牆邊,結果梯子下滑了4m,則梯子下滑後踢腳向外移動了______公尺?

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

a= 1\sqrt{1}  7\sqrt{7} 

b= 2\sqrt{2}  6\sqrt{6} 

c= 3\sqrt{3}  5\sqrt{5} 

則 a、b、c 三數的大小關係為何?

a > b > c

b > c > a

a > c > b

c > b > a

7.

FILL IN THE BLANK QUESTION

3 mins • 1 pt

(– 2021) × 2022 × ( 2021202220222021\frac{2021}{2022}-\frac{2022}{2021} ) =?

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