寒假作业数学.docx

1、寒假作业数学数学寒假作业练习112 5 = 11 4 = 13 8 =13 6 = 17 9 = 12 8 =59 25 = 62 40 = 40 28 =19 + 26 = 49 + 37 = 46 + 35 =33 + 58 24 = 24 + 61 39 = 22 + 39 47 = 47 18 + 25 = 52 48 + 76 = 88 41 + 35 =86 29 12 = 71 28 23 = 99 73 25 =练习214 5 = 18 9 = 14 8 =15 8 = 16 9 = 11 8 =30 13 = 29 24 = 63 25 =37 + 15 = 14 + 15

2、= 24 + 17 =15 + 36 + 14 = 68 + 13 + 14 = 55 + 19 + 27 =32 + 57 23 = 23 + 60 38 = 11 + 38 46 =46 17 + 24 = 51 47 + 75 = 77 41 + 34 =练习316 9 = 15 9 = 15 7 =12 3 = 11 4 = 13 5 =38 25 = 37 22 = 56 48 =19 + 26 = 16 + 77 = 46 + 35 =85 28 11 = 70 27 22 = 88 72 12 =14 + 35 + 13 = 67 + 12 + 13 = 44 + 19 + 26

3、 =34 + 59 25 = 25 + 62 40 = 23 + 40 48 =练习413 4 = 14 6 = 16 8 =22 5 = 22 4 = 23 8 =59 35 = 63 40 = 40 38 =29 + 36 = 49 + 37 = 46 + 35 =48 19 + 26 = 53 49 + 77 = 99 41 + 35 =87 30 13 = 72 29 24 = 84 13 25 =16 + 37 + 15 = 69 + 14 + 15 = 56 + 20 + 17 =练习523 6 = 27 9 = 22 8 =24 5 = 28 9 = 24 8 =30 23 =

4、39 34 = 63 35 =37 + 25 = 24 + 25 = 34 + 27 =24 + 38 25 = 25 + 37 40 = 13 + 58 48 =47 19 + 26 = 53 16 + 77 = 70 41 + 35 =65 28 13 = 72 25 24 = 62 13 25 =练习625 8 = 26 9 = 22 8 =26 9 = 25 9 = 25 7 =38 35 = 37 33 = 56 48 =29 + 36 = 26 + 77 = 46 + 35 =24 + 37 + 15 = 69 + 13 + 15 = 56 + 19 + 17 =33 + 58 3

5、4 = 34 + 62 39 = 33 + 39 47 =47 28 + 35 = 53 48 + 76 = 88 42 + 35 =练习722 3 = 22 4 = 23 5 =23 4 = 24 6 = 26 8 =38 23 = 53 34 = 33 35 =37 + 25 = 28 + 25 = 29 + 27 =86 39 23 = 72 38 33 = 99 53 35 =25 + 36 + 24 = 48 + 23 + 24 = 33 + 29 + 37 =33 + 57 33 = 33 + 60 38 = 22 + 38 46 =练习823 5 = 22 4 = 23 8 =2

6、3 6 = 27 9 = 23 8 =24 5 = 28 9 = 24 8 =25 8 = 26 9 = 22 8 =46 27 + 34 = 52 47 + 75 = 77 42 + 34 =85 38 22 = 70 37 33 = 88 43 23 =24 + 35 + 23 = 47 + 23 + 23 = 24 + 29 + 36 =练习926 9 = 25 9 = 25 7 =23 3 = 22 4 = 23 5 =23 4 = 24 6 = 26 8 =33 5 = 33 4 = 33 8 =34 + 59 35 = 35 + 63 40 = 33 + 40 48 =48 29

7、+ 36 = 53 49 + 77 = 99 42 + 35 =87 30 23 = 73 39 34 = 84 23 35 =65 38 23 = 73 15 34 = 63 23 35 =练习1033 6 = 37 9 = 33 8 =34 5 = 38 9 = 34 8 =35 8 = 36 9 = 33 8 =36 9 = 35 9 = 35 7 =26 + 37 + 25 = 39 + 24 + 25 = 16 + 30 + 27 =34 + 38 35 = 35 + 37 40 = 23 + 58 48 =47 29 + 36 = 53 26 + 77 = 70 42 + 35 =

8、34 + 37 + 25 = 19 + 23 + 25 = 16 + 29 + 27 =数学乘法口算练习题88=94=28=99=45+10=35=68=39=43=89-20=67=96=53=52=76+12=54=34=23=74=29+10=83=86=64=69=38-4=49=36=56=11=46+24=77=93=57=26=58+45=45=38=37=78=6+47=82=98=59=95=78+9=72=85=61=81=54+13=97=42=48=23=76+45=33=73=63=79=50-56=76=44=75=84=12+34=58=4+3=92=25=8+4

9、3=46=66=55=87=64-12=27=47=29=89=15+35=解决问题1、食堂有3袋大米，重300千克，两袋面粉重120千克，食堂里的3袋大米比两袋面粉重多少千克?2、会议室里有6张3人沙发和15张单人沙发，此会议室一共可以坐多少人?3、一堆木材运走20根，还剩25根，这堆木材原有多少根?4、兔子有3只，鹅的只数是兔子的2倍，鸡的只数是兔子的4倍。鹅和鸡各有多少只?5、小明家养7只小鸡，养鸭的只数是鸡的4倍，小明家养鸭多少只?养鸭的只数比养鹅少5只，小明家养鹅多少只?6、小毛今年7岁，爸爸的年龄是他的5倍。爸爸今多少岁?7、冬冬家有2只白兔，灰兔的只数是白兔的7倍。冬冬家养兔多少

10、只?8、张老师带着5名同学去校外参观，每张车票5角钱。来回共需多少钱?9、学校要在操场旁种一排树，每隔8米种1棵。(1)从第1棵到第5棵相隔多少米?(2)一共种了9棵树，这个操场有多长?10、小红今年9岁，妈妈的年龄是小红的4倍，奶奶比小红大56岁。妈妈和奶奶各是多少岁?11、一根绳子长97米，先用去了28米，又用去了45米。(1)这根绳子比原来短了多少米?(2)还剩多少米?12、一个玩具熊50元，一辆玩具汽车20元。小明拿100元钱，买了1个玩具熊和1辆玩具汽车用去多少元?13、屋里有10支点燃的蜡烛，被风吹灭了4支。此时屋里还有多少支蜡烛?14、爸爸、妈妈和我分别掰了9个玉米，小弟弟掰了6

11、个。问我们全家一共掰了多少个玉米?15、小兔种了5行萝卜，每行9个。送给邻居兔奶奶15个，还剩多少个?16、王师傅做了80个面包，第一次卖了17个，第二次卖了25个，还剩多少个?17、妈妈买了15个苹果，买的橘子比苹果少6个，问一共买了多少个水果?18、动物园有熊猫4只，有猴子是熊猫的3倍。问一共有熊猫和猴子多少只?19、图书馆有90本书。一年级借走20本，二年级借走17本，问图书馆还有多少本书?20、二.一班有女生15人，男生比女生多11人，问二.一班有学生多少人?21、小明有6套画片，每套3张，又买来4张，问现在有多少张?22、商店里有4盒皮球，每盒6个，卖出20个，还剩多少个?23、小汽车每辆能坐4人，大客车能坐25人，有3辆小汽车和1辆大客车，问一共能坐多少人?24、小熊捡了9个玉米，小猴检的是小熊的4倍，他们一共捡了多少个玉米?25、食品店有85瓶可乐，上午卖了46瓶，下午卖了30瓶，还剩多少瓶?