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1-2 正負數的加減

Authored by 陳 嘉卿

Mathematics

7th Grade

Used 32+ times

1-2 正負數的加減
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16 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 10 pts

23-32-16

25

-25

7

-17

2.

MULTIPLE CHOICE QUESTION

1 min • 10 pts

(-12)-(-14)+11

13

-15

37

-9

3.

MULTIPLE CHOICE QUESTION

1 min • 10 pts

23-(-15)+12

15

20

-20

50

4.

MULTIPLE CHOICE QUESTION

1 min • 10 pts

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

-27

-19

27

-49

5.

MULTIPLE CHOICE QUESTION

2 mins • 10 pts

下列各式中,何者正確?

-5+2=-7

-6-9=15

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

0-(-8)=-8

6.

MULTIPLE CHOICE QUESTION

2 mins • 10 pts

下列各式中,何者正確?

-8的相反數是-(-8)

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

5-(-3)的相反數是5+(-3)

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

7.

MULTIPLE CHOICE QUESTION

2 mins • 10 pts

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

 \overline{AC} =|(-7)+4|

 \overline{CD}  =(-4)-2

 AD\overline{AD}  =5

 BC\overline{BC}  =-4

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