三年级数学未知数 (4.5.20)
Quiz
•
Mathematics
•
1st - 5th Grade
•
Practice Problem
•
Medium
Rinson Lee undefined
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10 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
盒子里有15颗巧克力,妹妹拿走了一些。盒子里还剩下10颗巧克力。
以下哪个选项是未知数?
盒子里有15颗巧克力
妹妹拿走一些巧克力
妹妹拿走了5颗巧克力
盒子里剩下10颗巧克力
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
爸爸买了几个箱子。他把20棵小树苗平均放在这些箱子里,每个箱子能放4棵小树苗。
以下哪个选项是未知数?
爸爸买了几个箱子
20棵小树苗
每个箱子
4棵小树苗
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
布告栏上原本有10张通告,老师又贴上一些通告。现在布告栏共有16张通告。
以下哪个选项是未知数?
布告栏原本有10张通告
贴上一些通告
共有16张通告
老师又贴上6张通告
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
姐姐的桌子上有4个盒子,每个盒子有一样多的纸鹤。姐姐共有40只纸鹤。
以下哪个选项是未知数?
姐姐有4个盒子
姐姐共有40只纸鹤
一样多的纸鹤
每个盒子有10只纸鹤
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
爸爸买了30棵小树苗。他把其中一些小树苗给了叔叔,自己还剩下15棵小树苗。
请选出正确的未知数算式。
30 + N = 15
N + 30 = 15
30 - 15 = 15
30 - N = 15
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
盒子里有15颗巧克力,乐暄拿走了一些。盒子里还剩下10颗巧克力。
以下哪个选项是未知数?
盒子里有15颗巧克力
乐暄拿走一些巧克力
乐暄拿走了5颗巧克力
盒子里剩下10颗巧克力
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
布告栏上原本有10张通告,陆老师又贴上一些通告。现在布告栏共有16张通告。
以下哪个选项是未知数?
布告栏原本有10张通告
贴上一些通告
共有16张通告
陆老师又贴上6张通告
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