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1上 1-2 整數的加減

Authored by 康軒數位 康軒數位

Mathematics

7th Grade

Used 49+ times

1上 1-2 整數的加減
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

算式(-35)-[(-2+17)-(-15)]的值為多少?

-5

-35

-39

-65

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列四式中,何者不能成立?

(11+7)-4=11+(7-4)

(70-35)-25=70-(35+25)

(-80)-(-30)=(-30)-(-80)

(-25)+[-(-13)]=[-(-13)]+(-25)

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

a>0,b<0,且|a|<|b|,則ab=?

-(|b|-|a|)

-(|a|+|b|)

+(|a|+|b|)

+(|b|-|a|)

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

設甲數是正數,乙數為負數,且|甲數|=|乙數|,則下列何者不正確

甲數+乙數=0

甲數-乙數=0

|甲數|-|乙數|=0

甲數=-乙數

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

冬天合歡山溫度由零下2℃上升了5℃,再下降1℃,則最後的溫度是多少℃?

8℃

4℃

2℃

0℃

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

-27

-25

-20

-18

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

(-13)-(-5)的結果是在數線上的何處?

原點左方18個單位

原點右方18個單位

原點左方8個單位

原點右方8個單位

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