題目中的未知數只能用x表達,其餘的符號都不行。
南一五下ch10列出未知數

Quiz
•
Mathematics
•
1st - 5th Grade
•
Medium
蘇莉雯 蘇莉雯
Used 14+ times
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
o
x
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小葵今年y歲,5年前她是(5-y)歲。
o
x
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
姐姐x歲,比妹妹大5歲,妹妹的歲數可以用(x+5)來表示。
o
x
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
把兩個各重X公斤的鐵塊放在一起,共重2 x X公斤。
o
x
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
把18顆糖果分給x個小朋友,每人可分得 (18-x)顆。
o
x
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
媽媽的年齡是妹妹的2倍,若媽媽x歲,妹妹的年齡是(x÷2)歲。
o
x
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哥哥存的錢比弟弟多250元,若哥哥有x元,弟弟有(x-250)元。
o
x
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