
8-3 分配律
Authored by 陳玉新 陳玉新
Mathematics
5th Grade
Used 6+ times

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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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