四個數的平均數是50。如果其中三個數的平均是30,餘下一個數是多少?
Happy 5B1 Smart Maths: Exam 2

Quiz
•
Mathematics
•
5th Grade
•
Medium

Janice Yeung SPCCPS
Used 11+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
20
110
170
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
8、4、0、9和6的平均數是多少?
5.4
6.75
27
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1 m3 = ? mL
1000
10 000
100 000
1 000 000
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1.25 L = ? cm3
1 250
0.00125
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
八角錐體有多少條棱,多少個頂,多少塊面?
棱 = 24,頂 = 16,面 = 10
棱 = 16,頂 = 24,面 = 10
棱 = 9,頂 = 16,面 = 9
棱 = 16,頂 = 9,面 = 9
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪一個單位最適合用來量度一個飯盒的體積?
cm3
m3
mL
L
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
有0.375升果汁,可倒滿若干個50毫升的小杯,然後餘下多少果汁?
7個
0.5升
25毫升
0.025升
0.5毫升
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