【最新】北师大版二年级数学上册期末考试测试卷附答案

答案解析部分

一

1.【答案】40；44；52

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【考点】数列中的规律

【解析】【解答】解：36+4=40 40+4=44 48+4=52.故答案为：40，44，52．

【分析】由已知数字可得相邻两项后面的数字比前面的数字多4，按照此规律进行计算即可. 2.【答案】89；53+36．

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This article includes some parts, including text, pictures, and design. Copyright is personal owne【考点】两位数的进位加法

This article includes some parts, including text, pictures, and design. Copyright is personal owne【解析】【解答】解：53+36=89（个）故答案为：89；53+36.

【分析】将大猴子摘桃子的个数与小猴子摘桃子的个数相加求和即可. 3.【答案】2；5 【考点】5的乘法口诀

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；10里面有5个2，则

【解析】【解答】解：10里面有2个5，则1元可以买2把 1元可以买5盒 故答案为：2；5．

【分析】分析10里面有几个5角、几个2角即可解答. 4.【答案】18

【考点】7、8、9的乘法口诀

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2=18则积是18． 【解析】【解答】解：9×故答案为：18.

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【分析】首先列出乘法算式，再根据乘法口诀进行计算即可. 5.【答案】旋转；平移 【考点】平移，旋转

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【解析】【解答】解：风扇的转动是旋转，打针是平移.故答案为：旋转，平移． 【分析】根据平移和旋转图形的特征进行解答即可.[来源:学§科§网] 6.【答案】＜；＞；=；＜；＞；= 【考点】整数大小的比较

5=20，3×8=24，则4×5＜3×8； 【解析】【解答】解：4×

4×4=16，5×3=15，则4×4＞5×3；7×3=21，3×7=21，则7×3=3×7；

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40÷8=5，则40÷8＜6； 21÷3=7，则21÷3＞5； 36÷6=6，则36÷6=6.

故答案为： ＜；＞；=；＜；＞；=．

【分析】对于括号两侧都是算式的题目，先求出两侧算式的积，再比较积的大小即可；对于括号一侧是算式的题目，先求出算式的商，再比较商和已知数的大小即可. 7.【答案】4

【考点】长度的测量方法

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This article includes some parts, including text, pictures, and design. Copyright is personal own【解析】【解答】解：从图中可知：铅笔长4厘米.故答案为：4.

【分析】根据直尺测量物体长度方法：将物体一端与直尺的0刻度对齐，再看物体另一端对应直尺上的刻度，再读出这个刻度即可. 8.【答案】4 【考点】认识乘法

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This article includes some parts, including text, pictures, and design. Copyright is personal owne2=12（个）12－8=4（个）【解析】【解答】解：6×则再画4个●． 故答案为：4．

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【分析】首先数出图形中黑实心圆、白色圆的个数，再求出黑实心圆的2倍是多少，用求得的结果减去白色圆的个数即可.9.【答案】6

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【考点】表内除法

2=6，则每个鱼缸分6条鱼．【解析】【解答】解：12÷故答案为：6.

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2，再根据口诀求商即可. 【分析】将12条鱼平均分成2份，求一份是多少，用12÷10.【答案】14；21；28；35；42；49；56 【考点】7、8、9的乘法口诀

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7=14 3×7=21 4×7=28 5×7=35 6×7=42 7×7=49 7×8=56【解析】【解答】解：2×

故答案为：14；21；28；35；42；49；56.

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【分析】根据求几个几是多少可以用乘法列式，再根据乘法口诀进行计算即可. 二、

1.【答案】错误

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【考点】货币、人民币及其常用单位

【解析】【解答】解：由于此题有多种付钱的方法，这里用了“只能”显然不符合实际，故原题错误．

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故答案为：错误.【分析】本题还可以有其它付钱方式，所以本题说只有是错误的. 2.【答案】错误

【考点】平面图形的拼组 【解析】【解答】解：

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上剪下来的.故答案为：错误.

是从

【分析】将左侧图形对折后得到的图形与右侧剪下图形后留下的边沿对照即可判断正误. 3.【答案】正确

【考点】认识长度单位“米”

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【解析】【解答】解：根据生活实际与对长度单位的认识可知：大树高8米，故原题说法正确.故答案为：正确.

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【分析】根据生活实际和数据的大小进行判断即可. 4.【答案】正确

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【考点】认识乘法，6的乘法口诀

6或【解析】【解答】解：6个4，即4+4+4+4+4+4，4个6，即6+6+6+6，则乘法算式是4×6×4，故原题正确.故答案为：正确．

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4可以表示6个4相加，也可以表示4个6相加，据此判断即可. 【分析】乘法算式6×5.【答案】错误

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【考点】3的乘法口诀

This article includes some parts, including text, pictures, and design. Copyright is personal owne2，可利用乘法口诀二三得六，原题说法错【解析】【解答】解：根据分析可得：计算6÷误．故答案为：错误.

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2，是求2和几相乘得6，所以用的乘法口诀是二三得六. 【分析】计算6÷三、 1.【答案】B

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【考点】整数连加

This article includes some parts, including text, pictures, and design. Copyright is personal own【解析】【解答】解：A、25+13+30=68，比50大；B、12+13+20=45，比50小； C、25+15+18=58，比50大。故答案为：B．

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【分析】根据加法计算方法求出每个算式的和，再用求得的和与50比较大小即可得出答案. 2.【答案】C

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【考点】轴对称图形的辨识

【解析】【解答】解：从图中可知：对折后两边能完全重合，则对折后两

边不能完全重合有3个.故答案为：C．

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【分析】根据轴对称图形的定义：如果一个图形沿一条直线对折后，直线两侧部分能完全重合就是轴对称图形，据此解答即可.3.【答案】B

This article includes some parts, including text, pictures, and design. Copyright is personal owneThis article includes some parts, including text, pictures, and design. Copyright is personal owne

This article includes some parts, including text, pictures, and design. Copyright is personal owne【考点】认识长度单位“米”

【解析】【解答】解：根据实际生活经验可知：小猫的高度不够1米的．故答案为：B． 【分析】根据实际生活经验进行解答即可.4.【答案】A

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【考点】认识除法

This article includes some parts, including text, pictures, and design. Copyright is personal own【解析】【解答】解：A．一共有6瓶

This article includes some parts, including text, pictures, and design. Copyright is personal own ， 每2瓶为一份，可以分成3份，故原题说法正确；

This article includes some parts, including text, pictures, and design. Copyright is personal ownB．6里面有3个2， 故原题说法错误；C．一共有6瓶故答案为：A．

， 平均分成3份，每份是2瓶，故原题说法错误.

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This article includes some parts, including text, pictures, and design. Copyright is personal owne【分析】结合原图分析每个选项，再确定正确一项即可.5.【答案】B 【考点】认识乘法

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5=10，积是10，与原题相符； 【解析】【解答】解：A.2+8=10，和是10，与原题不符；B.2×C.15－5=10，差是10，与原题不符.故答案为：B．

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【分析】首先求出三个算式的结果，再根据算式中运算符号确定哪个选项是正确的. 四、

1.【答案】36；7；8；36；5；10；30；1元7角

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【考点】整数的加法和减法，4的乘法口诀，7、8、9的乘法口诀