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正負數與相反數

Authored by 台師大沈佩儀 台師大沈佩儀

Mathematics

6th - 7th Grade

Used 15+ times

正負數與相反數
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15 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

家門口為基準點,右邊15公里處是多少?

-15

+15

-1.5

+1.5

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

若賺2000元以+2000元表示,則賠650元以______元表示?

-1350

-2000

-650

+4500

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

身高150cm為基準點,135cm要記為多少?

-5

-25

+5

-15

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

小雅自我要求數學段考以75分為目標,若成績81分以+6分表示,則成績68分以___A____表示,成績75分記為____B____分,成績____C____分以-10表示。

請問A=多少 B=多少 C=多少?

A=-7 B=0 C=65

A=-8 B=0 C=55

A=-6 B=0 C=75

A=-7 B=1 C=65

5.

FILL IN THE BLANKS QUESTION

15 mins • 1 pt

明明以學校門口為基準點(起點),若向東走3km用+3公里表示,則像西走2公里用______公里表示。

請問_____該填入多少?

(a)  

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

-1/3的相反數是多少?

3

0.3

1/3

-3

7.

MULTIPLE SELECT QUESTION

15 mins • 1 pt

23的相反數是多少?(選出2個正確的答案)

-23

23

-(+23)

-(-23)

+(-23)

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