（一）式子的運算_以符號列式
Authored by 小瑄 鄧
Mathematics
7th Grade
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24 questions
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1.
DRAW QUESTION
1 min • 1 pt
a×18
Answer explanation
18a
2.
DRAW QUESTION
1 min • 1 pt
y×2.5
Answer explanation
2.5y
3.
DRAW QUESTION
1 min • 1 pt
50×x
Answer explanation
50x
4.
DRAW QUESTION
1 min • 1 pt
5.
DRAW QUESTION
1 min • 1 pt
x÷95
6.
DRAW QUESTION
1 min • 1 pt
7.
DRAW QUESTION
1 min • 1 pt
m×（－6）
Answer explanation
－6m
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