XTJH第一冊1-3整數的乘除與四則運算-20題

XTJH第一冊1-3整數的乘除與四則運算-20題

7th Grade

20 Qs

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XTJH第一冊1-3整數的乘除與四則運算-20題

XTJH第一冊1-3整數的乘除與四則運算-20題

Assessment

Quiz

Mathematics

7th Grade

Practice Problem

Hard

Created by

余金城 余金城

Used 10+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

下列各算式,何者是正確的?

(-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

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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