數學（全部不用寫單位）
Authored by en Y
Mathematics
4th Grade
Used 8+ times
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9 questions
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1.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
25+75➗5
(a)
2.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
30x2+30x28（不用列式）
(a)
3.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
380➗(20+56)（不用列式)
(a)
4.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
長方形的周界是340mm，它的長是50mm。它的闊是多少mm？ （不用列式）
(a)
5.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
96➗4-18（不用列式）
(a)
6.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
7➗49x14
(a)
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
以下哪道算式的結果最小？
(200-1)x15
15x208-15x8
900➗6x20
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