三年级未知数练习
Quiz
•
Mathematics
•
1st - 12th Grade
•
Practice Problem
•
Medium
CHAI Moe
Used 16+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小志在这个月从老师那得到 了16 颗星,上个月得到一些星,他共得到 30 颗星。
( ) + 16 = 30
16 + 30 = ( )
( ) + 30 = 16
16 + ( ) = 30
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
意见栏里原本有几张便条。取下 30 张后,还剩下 54张便条。
( ) - 30 = 54
54 - 30 = ( )
( ) + 30 = 54
( ) + 54 = 30
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
书橱里原本有几本书。取下 49本后,还剩下 84本书。
49 - ( ) = 84
84 - 49 = ( )
84 - ( ) = 49
( ) - 49 = 84
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
水果店里原有一些苹果,卖了96个苹果后,水果店里还有287个苹果。
以“ P ” 为未知数,选出正确的算式。
P + 96 = 287
96 – P = 287
P – 96 = 287P
287 + P = 96
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
罐子里有19颗柠檬味糖果和一些苹果味糖果。罐子里共有48颗糖果。
找出以上句子中的未知数。
罐子
柠檬味糖果的数量
苹果味糖果的数量
柠檬味和苹果味糖果的数量
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
张伯伯的农场产了36758个鸡蛋,卖出了一些鸡蛋后,农村还剩26500个。 找出未知数算式。
36758 + ( )= 26500
36758 + 26500 = ( )
36758 - ( ) = 26500
36758 - 26500 = ( )
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
文具店里有一些铅笔,每盒有12支,总共有144支。找出未知数。
每盒铅笔的数量
铅笔的盒数
铅笔的总数
文具店
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