下列各算式,何者是正確的?

XTJH第一冊1-3整數的乘除與四則運算-20題

Quiz
•
Mathematics
•
7th Grade
•
Hard
余金城 余金城
Used 10+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(-1)×(-2)=-2
(-1)×(-2)×(-3)=6
(-1)×(-2)×(-3)×(-4)=24
(-5)×(-6)×(-7)×0=2100
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
在-2、-1、0、4四個數中任取三個數相乘,其中乘積最小的值為何?
-8
-4
0
8
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列哪幾個選項是正確的?
甲:(18-2)-3=18-(2-3)
乙:[18×(-2)]×(-3)=18×[(-2)×(-3)]
丙:[18÷(-6)]÷(-3)=18÷[(-6)÷(-3)]
甲、乙
乙、丙
僅有乙
僅有丙
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
請問下列算式中,何者的計算結果最小?
(-3)×5÷(-7)
3×5÷(-7)
(-3)×(-5)÷7
3×(-5)÷(-7)
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
最小正整數除以最大負整數的商是多少?
-1
0
1
2
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
若(-1)×(-2)×(-3)×……×(-10)=N,則N與下列哪一個數的值最接近?
甲=(-1)×(-3)×(-5)×(-7)×(-9)
乙=(-2)×(-4)×(-6)×(-8)×(-10)
丙=1×3×5×7×9
丁=2×4×6×8×10
甲
乙
丙
丁
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
根據資料記載,由海平面往上每升高100公尺,氣溫就下降0.6℃。英杰想到合歡山登山,已知當日海平面的溫度是18℃,當英杰抵達海拔3400公尺的主峰時,該地的溫度是多少℃?
-6℃
-3.6℃
-2.4℃
-0.6℃
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