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8-3 分配律

Authored by 陳玉新 陳玉新

Mathematics

5th Grade

Used 6+ times

8-3 分配律
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8 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

「17×42+A×42=31×42」,A是多少 ?      

14 

17

31

42

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

84×(3+4)□ 84×3+84×4,□ 中應填入什麼符號?    

無法比較。

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

「B×23=16×23-7×23」,B是多少?        。

23

16

9

7

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

5×7+5×3 的計算方式,哪一個是正確的?        

5×7×3

7×(5+3)

3×(5+7)

5×(7+3)

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下面哪一個算式是錯的?    

(甲+乙)×丙=乙×丙+甲×丙

甲+乙-丙=甲-丙+乙

(甲-乙)×丙=甲×丙-乙×丙

丙×甲-丙÷乙=丙×(甲÷乙)

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

300×12=(□+100)×12,□中的數是多少?  

500

400

300

200

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

「92×15+15」和下面哪一個算式相等?       92+

92×(15+1) 

92×(15+15)

(92+1)×15

15×15

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