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七上整數四則運算

Total questions: 25

Worksheet time: 16mins

Name
Class
Date
1.

(-12)-(-14)+11

a)

13

b)

-15

c)

37

d)

-9

2.

23-(-15)+12

a)

15

b)

20

c)

-20

d)

50

3.

(-20)+(-18)-(-11)

a)

-27

b)

-19

c)

27

d)

-49

4.

下列各式中,何者正確?

a)

-5+2=-7

b)

-6-9=15

c)

(-4)+(-5)=-9

d)

0-(-8)=-8

5.

下列各式中,何者正確?

a)

-8的相反數是-(-8)

b)

|(-3)-7|=7+(-3)

c)

5-(-3)的相反數是5+(-3)

d)

|3-(-7)|=(-7)-3

6.

若|a|=8,|b|=5,且a<0,b<0,則ab=?

a)

13

b)

3

c)

-3

d)

-13

7.

10-〔(-4)-3〕-(-2)-8-〔-5-(-30)〕=?

a)

14

b)

24

c)

-14

d)

-24

8.

數線上C、D兩個點,其中C代表的數為1,且 CD\overline{CD} =4,則D點所代表的數為?(複選)

a)

9

b)

5

c)

3

d)

-3

e)

-1

9.

數線上有A(-7)、B(0)、C(-4)、D(2)四個點,則下列敘述何者正確? 

a)

AC線段長=|(-7)+4|

b)

CD 線段長=(-4)-2

c)

AD\overline{AD}  =5

d)

BC\overline{BC}  =-4

10.

30÷(10)=-30\div\left(-10\right)=  

a)

-300

b)

-3

c)

3

d)

300

11.

(3)2\left(-3\right)^2  

a)

-6

b)

-9

c)

9

d)

6

12.

(-8) x ___ = -32

a)

3

b)

-3

c)

4

d)

-4

13.

(-1)(1)(-1)(-2)(-1)(1)

a)
2
b)
-2
c)
-5
d)
5
14.

糖果一包有175粒,把其中25粒吃掉後,再平均分給30名學生,每名學生可得糖果多少粒?

a)

17525÷30175-25\div30

b)

(17525)÷30\left(175-25\right)\div30

c)

(175+25)÷30\left(175+25\right)\div30

d)

175÷25+30175\div25+30

15.

(-2)×|-1+3|-5=?

a)

-13

b)

-9

c)

3

d)

1

16.

36÷[(-4)+2]=?

a)

6

b)

18

c)

-6

d)

-18

17.

(-8)×(-2)+(-61)×0=?

a)

0

b)

16

c)

25

d)

-55

18.

999×(-7)=?

a)

7000

b)

-7000

c)

-6983

d)

-6993

19.

已知19×18×17×16×15=1395360,則(-19)×(-18)×(-17)×(-16)×(-15)=?

a)

-1395360

b)

1395360

c)

-139536

d)

139536

20.

a×240=1234,則a×8×240×125=?

a)

1234

b)

12340

c)

123400

d)

1234000

21.

已知99×98×97×96=90345024,則(-99)×98×(-97)×96=?

a)

90345024

b)

-90345024

c)

903450240

d)

-903450240

22.

(a)(b)=\left(-a\right)-\left(-b\right)=  

a)

+a+b+a+b  

b)

a+b-a+b  

c)

+ab+a-b  

d)

ab-a-b  

23.

(+a)×(b)=\left(+a\right)\times\left(-b\right)=  

a)

+(a×b)+\left(a\times b\right)  

b)

(a×b)-\left(a\times b\right)  

c)

+ab+a-b  

d)

+a+b+a+b  

24.

4×(4230÷6)=?4\times\left(42-30\div6\right)=?  

a)

(16830)÷6\left(168-30\right)\div6  

b)

4×(425)4\times\left(42-5\right)  

c)

4×(12÷6)4\times\left(12\div6\right)  

d)

4×(42÷630)4\times\left(42\div6-30\right)  

25.

以下題目哪個步驟是錯誤的?

81÷9+256÷481\div9+256\div4  

a)

9+256÷49+256\div4  

b)

(9+256)÷4\left(9+256\right)\div4  

c)

9+649+64  

d)

81÷9+6481\div9+64