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七上正負數四則運算

Authored by 范雪凌 范雪凌

Mathematics

7th Grade

Used 3+ times

七上正負數四則運算
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30 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

(-12)-(-14)+11

13

-15

37

-9

2.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

23-(-15)+12

15

20

-20

50

3.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

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

-27

-19

27

-49

4.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

下列各式中,何者正確?

-5+2=-7

-6-9=15

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

0-(-8)=-8

5.

MULTIPLE CHOICE QUESTION

30 sec • 5 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

6.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

若|a|=8,|b|=5,且a<0,b<0,則ab=?

13

3

-3

-13

7.

MULTIPLE SELECT QUESTION

30 sec • 5 pts

下列各選項,哪些正確?(複選)

13-|(-2)-(-17)|+(-11)=-13

數線上A(2)、B(-20),則A到B的距離=22

-(1728)= -17-28

已知a、b為數線上兩數,則|a-b|=|b-a|

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