1上 1-2 整數的加減

Quiz
•
Mathematics
•
7th Grade
•
Medium
康軒數位 康軒數位
Used 49+ times
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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
若a>0,b<0,且|a|<|b|,則a+b=?
-(|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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