(人教版)初一上册数学寒假作业答案参考

(人教版)初一上册数学寒假作业答案参考（共10篇）

1.(人教版)初一上册数学寒假作业答案参考 篇一

初一年级上册历史寒假作业答案人教版

10、DBCACBAADC

11、(1)东至东海，南达 南海，西到陇西，北到 长城 一带。秦始皇在地方上推行了郡县制

(2)秦王嬴政灭六国统一天下，建立秦朝;公元前221年;(3)文化上：统一文字为小篆，后又推广笔画更为简单的隶书

(4)思想上：焚书坑儒;这段材料中的“臣”是指李斯(2分)(5)A.加强了思想控制，有利于当时社会的稳定，有利于封建统治的巩固;B.破坏了文化，钳制了人民思想，不利于创新和发展，对后世造成恶劣的影响

精品小编为大家提供的初一年级上册历史寒假作业答案大家仔细阅读了吗?最后祝同学们学习进步。

人教版七年级上册历史寒假作业答案参考 2016年初一上学期历史寒假作业答案参考

2.初一英语暑假作业参考答案人教版 篇二

I am a 13-year-old student. Though I am busy with my study, I would like to spend time on my hobbies, such as playing the piano and surfing the Internet.

My favorite hobby is reading. Reading books can not only kill the time, but also help improve my reading ability. When I read books, I can learn a lot about great people. For example, reading Shakespeare’s works can make me know what Hamlet looks like. When reading Lu Xu, I seem to come back to the old time of China.

3.人教版八上册英语寒假作业答案 篇三

1、junk program start differences exercises

2、多久一次、至于、当然、照看、与・・・・・・不同、on weekends、go to the movies 、

twice a week 、my favorite singer、do morning exercises

3、times 、skateboarding、eating、watches、surfing

4、B、D、C、A、C、C、C、B、B、C、C、D、

5、(1) How often (2) What (3) What’s favorite (4)doesn’t do any (5) doesn’t eat

6、(1) I usually climb the hill on weekends.

(2)I go to the movies once a year.

(3)My brother plays soccer three or four a week.

(4)She watches TV at home.

(5)Yes, I am.

7、healthy 、milk、often、day、like、much、why、good、think、tellin

8、D、B、A、C、D、B、C、A、D、B

9、B、B、D、B、

10、(1)so fishing (2)meet (3) mare a meeting (4)clean (5) free (6) Friday、

l 二

1、 balanced 、dentist、medicine、believe 、improve|、weak、

2、 C、H、G、E、D、F、B、A、

3、 (1) Stressed out、(2) stay healthy、(3) see a dentist、(4) drink tea with honey、

(5) lie dews、rest (6) drink lots of water (7) eat anything go to bed early

4、C、C、B、B、A、A、C、C、B、A、

5、(1)It’s 、to (2) lots of (3) shouldn’t drink much water (4) What’s the matter with

(5) When did 、arrive

6、2-5-3-1-9-4-7-6-8

7、A、B、C、B、D、A、B、C、A、A 8、B、A、D、C、C、、C、D、B、A

9、My friend Li Ming has a bad cold because he played football in the rain with his friends yesterday .The doctor told him to drink snore water and stay in bed to hare a good rest for two days. He has to ask for leave.

l 三

1、Weather、long、where、takes、fishing

2、1.Sounds、2.doing、3. eating、times、4. watched、did watch、watched、5. does、reads

3、B、D、A、B、B、C、C、D、D、A

4、(1)don’t believe will (2) wrong with (3) may be (4) why comes

5、C、A、C、C、B、A、B、A、B、A

6、(1)B、A、B、B、C、(6) right how (7) They are staying here for fire days. (8) 他们尽力维持纪律。(9)Tomorrow (10) No, most of the young people will do .

7、Had 、sent、is、said、saw、jumped、could、told、get、smiled

8、During the National Day. I’m going to Shennongjia for vacation with my parents. We are learning on 29th of September by train. We are staying there for about six days. We are going sightseeing there. On the first day. We are going to climb the mountains .On the second day we are going rafting, and in the last few days we will the sunrise and visit some famous places.

l 四

1、 worried 、depend、tickets、halves 、kilometer、hundred 、minutes、

2、 B、F、E、A、C、G、D

3、 A、C、C、B、A、D、B、B、B、B、

4、 (1)takes、15 、minutes、walk (2) how to get (3) Not every (4) How long does 、take (5) How does

5、 (1) must be a lot more popular (2) taking 、take a car (3)to walk to wok (4)to takes 、to get from (5) How far is it 、to

6、 F、A、C、E、B、G、D

7、 D、B、C、A、A、B、C、B、D、C

8、 D、B、C、C、D、quiet、F、F、(8)因此他们为此报了警。 (9)So it can speak many words abut the taxi.

9、 Every day they go to school in different ways 40% of them go to school on foot 35% take the buses, and 20% of the students ride bikes. Very few students go to school by car.

l 五

1、really、free、lessons、practice、matches、until

2、all、speaking、went、helps、visit

3、at、from to、in、with、on

4、(1)studying for、(2)Thanks for、(3)too much、(4)went to the concert(5)on Wednesday

5、(1)stay 、play the (2)tennis training with (3)can’t go to (4)the day after tomorrow (5)have to leave

6、C、C、C、A、B、A、D、B、B、B

7、(1)Where is it going to be? (2)What time?(3)Who else will go tjere?(4)That’s wonderful. (5)See you then.

8、B、C、A、B、A、C、B、A、A、B

9、A、B、D、7th October 、1978、E、D、A、B、C、

10、 invitation 、sorry、busy、movies、dentist、Wednesday、football、science test、birthday、at home

l 六

1、quiet、calm、serious、athletic、sports、interesting、

2、1.my photo 2.in common 3.in some ways 4.more than 5.做功课 6.一种受欢迎的食物 7.有空 8.与……有区别 9.得到足够的信息 10.与……一样好

3、B、D、B、D、C、B、A、C、D、A、C、D、D、A、D

4、1.Go to school earlier. 2.as good as 3.Both of are blue 4.doesn’t do 5.Does go to

5、1.What does she look like? 2. Don’t you look the same? 3. Is she good at schoolwork? 4. Who is more athletic? 5. Do you like to hare friends who are like you?

6、B、C、B、A、B、C、C、C、B、B

7、B、A、B、C、D、C、A、D、

9. They are artists. 10. No, he isn’t. 11. No, she has a younger brother.

12. He is a short mar with curly hair. 13. No, she isn’t.

8、Wen and Jin are twins. Wen is as tall as Jin and has longer hair than Jin. Jin is more outgoing than Wen. Then both have a lot of beautiful clothes, but Jin’s clothes are munching cooler. Wen’s schoolwork is better than Jin’s.

l 七

1、peel 、pour、deadpans、added、bread、recipe

2、on/off、up、into、of、in、up、to、on、for、in

3、B、B、C、D、A、C、C、B、C、B

4、(1)First then make、(2)need to put 、(3)easy to (4)Another two

(5) Let make

5、(1) How many oranges do we need? (2)How much cinnamon do we need.(3)Let’s begin. (4) First mix then up.

6、D、A、B、A、C、D、B、B、A、A

7、(1)68 hot dogs.(2)$10,(3)New York(4)45 years old(5)Juliet lee(6)7 years old (7)piano guitar

8、I’m Tommy. Yesterday is my mother’s bather day. I make vegetables for my mother. First, I brought some vegetables. Then, cut the vegetables and washed all of them. Next, I put the vegetables, some salt and oil in the bowl. I mixed all the ingredients up. My mother was very happy.

l 八

1、famous drove aquarium wetter luckily competition

2、(1)there were (2)on the school trip (3) On my next day off

(4) None of (5) had a yard sale (6)get wet

3、B、B、A、D、B、D、C、C、D、A、B、C、A、B、C

4、(1) was not (2) What did do (3)When did (4)Did go (5)What else

5、B、A、D、C、E

6、A、C、D、B、C、B、A、D、C、D

7、C、B、A、C、D、D、B、B、A、D

8、 It took us about two hours to get there. Then we began to climb the mountain. There were many trees and flowers on it. And there were a lot of visitors. Some of them were foreigners. At noon we sat under the trees and had out picnic lunch. All the food was delicious. We took many photo during the trip.

l 九

1、usually、nations、violinist、born 、golfer、creative、talented

2、(1)win the first prize (2) was born( 3)major in (4)too……to (5)at the age of (6) take part in (7) because

3、B、D、D、B、C、B、A、C、B、B、C、B、A、C、D

4、(1)Neither is (2) What did do ( 3) played (4) Did go to (5)because of

5、B、C、D、A、C、B、A、B、D、A

6、D、B、C、C、A、(6)逝世(7)He died form heart disease.(8)A cross talk performer. (9)He was forty-six.(10)The writer very sad.

7、(1)decided to study medicine (2)C (3)writing (4)他的书是中国对世界医学最伟大的贡献之一。(5)He finished his great work at the age of 60.

l 十

1、 rich、send、dreams、save、somewhere、journalist、college instrument

2、 A、D、A、C、B、A、C、C、A、A

3、 (1) when you grow up (2) at the same time (3) keep fit (4) are you going to do part-time job (5) all over

4、 (1) instead of (2) didn’t feel until (3) so small that (4) necessary to (5)what was used

5、 (1) What is your best friend going to be//He is going to be (2)Where are you going to more// Yes, I’m going to more to (3)Is your uncle going to Beijing //Yes ,he is. (4) Are you going to get apart time. //yes, I’m. (5) What are you going to do next year? // I’m going to.

6、 (1)I want to be an actor. (2) Why not go to Hollywood? (3)What are you going to do? (4) Sounds great (5) I hope so.

7、 D、C、B、A、A、B、D、B、A、C

8、 C、B、A、C、D、(6) He built it on a mountain in Canada. (7) What are you going to do?

9、 I have a lot of teachers. But my favorite teacher is Miss Liu . She id outgoing and loving. And she teaches us is very good. We all love her. I thing she is too friendly.

l 11

1、 feed disagree trash partner relaxing fold dishes

2、 倒垃圾 do the dishes 扫地 clean the levity room 对换生have a welcome meeting 铺床 a place of interest 锁门 fold the clothes

3、 (1)Could can’t Must needn’t can (2)May can must (3)May may could (4)Could (5) Could must

4、 C、A、C、B、C、C、B、C、D、B

5、 (1)lent to (2)Can you some (3) at home (4) take care of (5)do exercise

6、 (1)Sure, you can. (2)What should I do first (3) I’ll help you.(4)Thanks mom.

7、 D、B、C、D、A、B、A、A、C、D

8、 D、A、C、B、C、(6) After a serious illness. (7) Because he was afraid to lose his work. (8)He laughed louder than any one else. (9)Because he wanted to show that there was nothing. (10)Because it was the same joke as his friends.

9、 I’m Wang huan. My parents and I are going to mount Jiugong on vacation tomorrow, could you please feed my day. Please take my dog for a walk and play with him and give him water and reed him every day. Clean his bed and wash his bowl. Sweeping the flow, taking out the trash.

l 12

1、 enough radio close seat dull

2、 (1)do a surrey(2) in town (3) think about (4)good service(5)As for (6) cut the price

3、C、A、A、D、B、C、D、B、C、B

4、(1)the most comfortable(2)the best(3)are the cheapest (4)service close to better then (5)What about quality computer (6)English teacher popular loves

5、(1)Yes, I do.(2)It’s hard to jay .(3)I like basketball better than football(4)Are you good at basketball.(5)Shall we have a basketball game after school.

6、C、C、B、D、A、C、A、B、A

7、(1)In 1971,J.K,kowling wrote he first story.(2)She was a secretary.(3)She had the idea for Harry Potter when she was on a train. (4)In Edinburgh Scotland.(5)She’s famous for her first book.(6-10)T、F、T、F、T

4.(人教版)初一上册数学寒假作业答案参考 篇四

10.lightning 11rained 12. fell 13.wildly 14. What a 15.frightned 16.rainier

17.strong 18./ terrible 19.towards 20.spend 21.running 22 project 23.terrible

24.were planning 25.were doing 26.working 27.was watching was reading

28.was doing came 29. were cleaning 30.was happening 31.Was,was having 32.shake

33.was reading, rang 34.was looking , was sleeping 35.Were , studying , were shopping

36.called 37.when 38.following 39.foggy 40.rainy 41.brightly , sunny 42.windy , strongly

43.survivor 44.Thousands 45.Were , having 46.was , sleeping 47.importance 48.beginning

49.snowy 50.worse worse 51.saying 52.mopping 53.lost 54.covered 55.trapped 56.with

5.(人教版)初一上册数学寒假作业答案参考 篇五

1-5:BADAB6-10:BADBC11-15:CDDCA

二、完型填空。(10分)

1-5:CBBBB6-10:ABCDB

11.stay12.or13.weekday14.does15.washes

16.Sunday17.big18.much19.food20.hungry

三、阅读理解。(30分)

6.人教版数学九年级寒假作业答案 篇六

1.A2.D3.D4.D5.C6.B7.A8.B9.B10.D

二、填空题

11.312.13.-114.=

三、15.解：

==.

16.解：

四、17.方程另一根为，的值为4。

18.因为a+b=2++2-=4，a-b=2+-(2-)=2，

ab=(2+)(2-)=1

所以=

五、19.解：设我省每年产出的农作物秸杆总量为a，合理利用量的增长率是x，由题意得：

30%a(1+x)2=60%a，即(1+x)2=2

∴x1≈0.41，x2≈-2.41(不合题意舍去)。

∴x≈0.41。

即我省每年秸秆合理利用量的增长率约为41%。

20.解：(1)∵方程有实数根∴Δ=22-4(k+1)≥0

解得k≤0，k的取值范围是k≤0(5分)

(2)根据一元二次方程根与系数的关系，得x1+x2=-2,x1x2=k+1

x1+x2-x1x2=-2+k+1

由已知，得-2+k+1<-1解得k>-2

又由(1)k≤0∴-2

∵k为整数∴k的值为-1和0.(5分)

六、21.(1)由题意，得解得

∴(3分)

又A点在函数上，所以，解得所以

解方程组得

所以点B的坐标为(1,2)(8分)

(2)当02时，y1

当1y2;

当x=1或x=2时，y1=y2.(12分)

七、22.解：(1)设宽为x米，则：x(33-2x+2)=150，

解得：x1=10，x2=7.5

当x=10时，33-2x+2=15<18

当x=7.5时，33-2x+2=20>18，不合题意，舍去

∴鸡场的长为15米，宽为10米。(5分)(2)设宽为x米，则：x(33-2x+2)=200，

即x2-35x+200=0

Δ=(-35)2-4×2×200=1225-1600<0

方程没有实数解，所以鸡场面积不可能达到200平方米。(9分)

(3)当0

当15≤a<20时，可以围成一个长方形鸡场;

当a≥20时，可以围成两个长宽不同的长方形鸡场;(12分)

八、23.(1)画图(2分)

(2)证明：由题意可得：△ABD≌△ABE，△ACD≌△ACF.

∴∠DAB=∠EAB，∠DAC=∠FAC，又∠BAC=45°，

∴∠EAF=90°.

又∵AD⊥BC

∴∠E=∠ADB=90°∠F=∠ADC=90°.

又∵AE=AD，AF=AD

∴AE=AF.

∴四边形AEGF是正方形.(7分)

(3)解：设AD=x，则AE=EG=GF=x.

∵BD=2，DC=3

∴BE=2，CF=3

∴BG=x-2，CG=x-3.

在Rt△BGC中，BG2+CG2=BC2

∴(x-2)2+(x-3)2=52.

化简得，x2-5x-6=0

7.人教版七年级寒假数学作业答案 篇七

丰富的图形世界(一)解答：

1、D; 2、B; 3、B,D; 4、20; 5、B; 6、略

丰富的图形世界(二)解答：

1、D; 2、A; 3、D; 4、D; 5、C; 6、B; 7、最少9个，最多12个;

8、沿长绕一圈：36;沿宽绕一圈48;

系列2——《有理数及其运算》解答

1.C 2.D 3.B 4.B. 5.B. 6.C 7.D 8.C 9.D 1 0.C 11.B 12.D

13. -3 14. 15.-3.5 16. 负数 17. 18. 26，27.5，24.5;

19.(1)-8 (2) (3)40 (4)-3 ; 20.略 21. -2c; 22. 3; 23. 1

24. 解：(1)设向上游走为正方向，

∵5+5-4-4.5 = 1 +0.5 = 1.5,

∴这时勘察队在出发点 上游 1.5 km ，

(2)相距1.5千米，

(3)水利勘察队一共走了20 km

25.(1)周五(2)35辆 (3)-27，不足，少27辆

26. 解：(1)∵不少于500元的，其中500元按9折优惠，

∴如果在该商场一次性购物500元实际付款是450元.

(2)设买a(a>500)元的物品.

根据题意得：实际付款=500×0.9+0.8(a-500)=(0.8a+50)元.

(3)购物用了138元时. ∵138<200，∴138元没优惠.

购物用了482元时.∵0.8a+50=482，a=540;540-482=58

∴两次购物分别用了138元和482元，共节省了58元.

他还能再节省一点，方案是：可以合起来买，理由：合起来买时

∵138+540=678，而500×0.9+(678-500)×0.8=592.4，

∴678-592.4=85.6.故合起来买会更便宜，节约85.6元.

系列3——《整式的加减一》解答

一、1、A 2、A 3、D 4、C 5、B 6、C

二1、(1)a+b-c-d ;(2)a-b-c+d;(3)_a+b+c-d;(4)-a+b-c. 2、

3、a=__1__，b=_3_ 4、5、(1)2n (2) 700

6、n(n+2)=n2 +2n

三、1、(1);(2)

(3). 原式=2-9x-2 x 2，11

2 (1)S=32 (2) S=3200 ; 3、4

4(1)甲：(0.2 x+500)元;乙：0.4 x元;

(2)甲：980 元;乙：960元;选择乙印刷厂比较合算;

(3)甲：7500份，乙：5000份;甲印刷厂印制的多，多2500份

系列3——《整式的加减二》解答

一 1 A 2 B 3 C 4 C 5 D 6 D

二 1 - +

2 (1) n-1,n,n+1 (2) 2n-4,2n-2,2n

3 -2b 4 5 27 6 89

三

1、(1) 3(1-2ab2)-2(a2b-4ab2) (2) x-(3x-2)+(2x-3);

解：原式=3-6ab2-2a2b+8ab2 解：原式= x-3x+2+2x-3

=3-6ab2+8ab2-2a2b = x-3x+2x+2-3

=3+(-6ab2+8ab2)-2a2b = (x-3x+2x)+(2-3)

=3+2ab2-2a2b = -1

(3) 3a2-2(2a2+a)+2(a2-3a)，其中a=-2;

解：原式=3a2-4a2-2a+2a2-6a

=3a2-4a2+2a2-2a-6a

=(3a2-4a2+2a2)+(-2a-6a)

= a2-8a

将a=-2代入得，原式=(-2)2-8×(-2)

= 4+16

= 20

2、n2

8.(人教版)初一上册数学寒假作业答案参考 篇八

为了保证学生能度过一个健康、快乐、安全、有意义的假期，查字典数学网初中频道为大家提供了八年级数学寒假作业，希望对大家有所帮助。人教版八年级数学寒假作业答案第1页第3页1.选择题1A 2D 3A 4C2.填空(1)T=20-6h20,6Thh(2)Q=6x105-pt6x105pQt06x105/p(3)S=1.5b(4)0705503.解答题(1)y=Q/a-xQ/a(0a)(2)y=80-2x20(3)①-23②当x=3,y有最小值为1/2③当-20，y随x的增大而增大，当03，y随x的增大而减小(4)①`v=800-50t②016③当t=8时，v=800-50x8=400④当v=100时，100=800-50tT=14第5页第7页选择题1B 2C 3C 4B 5B 6A 7B 8D填空(1)1(2)y=2x+1-1(3)m3(4)y=-3x+3(5)y=x+3(6)y=64x+48(7)S=2n+1(8)y=1/5x-630解答题(1)设y=kx+b-4k+b=156k+b=-5k=-2b=7y=-2x+7(2)略(3)①表示y与x的关系，x为自变量②10时离家10km13时离家30km③12时-13时，离家30km④13km⑤2时-13时⑥15km/h第9页第11页1.选择题(1)A(2)C(3)C2.填空(1)y=-2x(2)m2(3)y=5x+3(4)y2y1(5)y=-2x+10025(6)93.解答题(1)①Q=200+20t②(030)(2)①y=80(050)y=1.9x-15(50100)②y=1.6x③选择方式一(3)①在同一直线上y=25/72x②当x=72时，y=25当x=144时，y=50当x=216时，y=75y=25/72x(0345.6)③当x=158.4时，y=25/72x158.4=55(4)①y甲=2x+180y乙=2.5x+140②当x=100时，y甲=200+180=380Y乙=140+250=390380〈390租甲车更活算第13页第15页1.选择题(1)D(2)C(3)C2.填空(1)x=2y=3(2)x=2x2(3)-3-2x=-5/8y=-1/8(4)1/20x=2y=3(5)y=5/4x2.解答题3.(1)略(2)①依题意-k+b=-52k+b=1解得k=2b=-3y=2x+3当y0时2x-33/2②当x2时，2x4则2x-31即y1(3)①y会员卡=0.35+15y租书卡=0.5x②若y会员卡〈y租书卡则0.35x+150.5xx100租书超过100天，会员卡比租书卡更合算(4)设A(m,n)1/2x4xm=6m=3n=2A(-3,-2)y=2/3x,y=-2/3x-4(5)①y甲=0.8x1.5X+900=1.2x+900(x500)Y乙=1.5x+900x0.6=1.5x+540(x500)②若y甲=y乙1.2x+900=1.5x+540x=1200当x1200时，选择乙厂当x=1200时，两厂收费一样当x〉1200时，选择甲厂20001200,选择甲厂y甲=1.2x2000+900=3300第17页第19页1.选择题(1)C(2)D(3)C2.填空(1)630(2)0.170.17(3)35(4)①238.1824②12.9③2万3解答题(1)①七大洲亚洲②亚洲和非洲③100%④大洋洲⑤不能(2)①一车间第四季度②一车间二车间③①是图(1)得出的②是图(2)得出的(3)①48②0.25③哪一个分数段的学生最多?70.5~80.5的学生最多。第21页第23页1.选择题(1)B(2)B(3)C(4)B2.填空(1)20%30%25%25%(2)扁形36%115.2度(3)4113解答题(1)县ABCDEF人口(万)90***百分比12.9%2.1%10.3%39.1%11.0%24.5%圆心角度数46.47.737.1140.839.788.2(2)图略(3)身高(cm)频数154.5~159.52159.5~164.54164.5~169.56169.5~174.510174.5~179.55179.5~184.53(4)图略结论：只有少数人对自己工作不满。(5)①200.16②略第25页第27页1.选择题(1)B(2)C(3)A(4)C(5)B(6)C2.填空(1)CDCODOC(2)DECDED600(3)CADCD(4)50010108(5)ADECAE3解答题(1)①△DCE可以看作是△ABF平移旋转得到的②AF不一定与DE平行,因为AFE不一定等于D(2)ABC=1800x5/18=500C=1800x3/18=300BCB=ABC=800∵△ABC≌△ABCA=A=300B=ABC=500BBC=1800-B-BCB=500(3)①略②分别取各边中点,两两连接即可.(4)延长AD至E,使AD=DE,连接BEAD=ED∵D为BC的中点在△BDE和△CDA中BD=CDADC=BDEDE=DA△BDE≌△CDABE=ACAEAD第29页第31页选择题(1)D(2)B(3)B(4)C2.填空(1)6(2)200(3)BO=CO(4)AB=DCACB=DBC3.解答题(1)∵AE=CFAE+EF=CF+EFAF=CE∵CD=ABDE=BFCE=AF△CDE≌△ABFDEC=AFBDE‖BF(2)△ABE≌△ACG△ABD≌△ACF∵AB=ACABC=ACB∵BD平分ABC，CF平分ACBABD=ACF∵BAF=BAFAB=AC△ABD≌△ACF(3)BA=BC∵AB=BCBBE=BD△BEA≌△BDC(4)证明∵EH=FHDH=DHDE=DF△DEH≌△DFHDEH=DFH(5)①证明∵BCA=ECDBCA-ACE=ECD-ACE即BCE=ACD∵EC=DCBC=AD△BEC≌△ADCBE=AD②BE=AD仍然成立证法同(1)第33-35页1.选择题(1)A(2)D(3)D(4)D2.填空题(1)EP=PF(2)角平分线角平分线上的点到两边距离相等。(3)7cm(4)5003.解答题(1)证明：作DEAB∵AD平分CADDEABDCACDC=DE∵C=900AC=BCB=450∵DEABEDB=450BE=DE∵AEDCAD=DAEAD=AD△ACD≌△AEDAC=AEAB=AE+BE=AC+CD(2)∵OD平分AOB2∵OB=OA2OD=OD△OBD≌△OAD(SAS)4OD平分ADB∵PMBD，PNADPM=PN(3)BED=CFDBDE=FDCBD=CD△BED≌△CFD(AAS)DE=DF∵DEAB，DFACAD平分BAC(4)证明：作MNAD∵DM平分ADCCMCDNMADMC=NM∵M为BC的中点BM=CM∵NMAD，BMAB证明∵DE平分BC，DEBCCM=BM∵NMAD，BMABAM平分DAB(5)∵DE平分BC，DEBCBE=CE∵AE平分BACEF=EG∵BE=CEEF=EG△BFE≌△CGEBF=CG为大家推荐的八年级数学寒假作业的内容，还满意吗?相信大家都会仔细阅读，加油哦!

9.(人教版)初一上册数学寒假作业答案参考 篇九

班级：

姓名：

密 封 线 二年级期中考试测试卷 数 学 试 卷（考试时间：60分 满分100+10分）一、口算。（24分）30＋5＝ 4×6＝ 16＋4＝ 20－5＝ 57－30＝ 5－5＝ 6×3＝ 2×4＝ 27＋30＝ 5×5＝ 1×6＝ 2×4＝ 65－40＝ 26－3＝ 24＋6＝ 1×5＝ 40＋40＝ 1×4＝ 5×1＝ 10－5＝ 2×3＋11＝ 3×2＋10＝ 2×4＋8＝ 2×6－12＝ 二、在○里填上“＞”、“＜”或“＝”。（6分）6×6○1×1 20＋5○20－5 4×3○3×4 8米○8厘米 1米○6米 1米○100厘米 三、在（）里填上“米”或“厘米”。

（4分）（1）门高2（）。

（2）铅笔长24（）。

（3）桌子高80（）。

（4）教学楼高14（）。

四、数一数，下面图形中有几个角，并填在（）里。（6分）()个角()个角()个角 五、在下面空白处画一个角。（5分）六、笔算下列各题。（9分）39＋42＝ 64－45＝ 90－(28＋17)＝ 七、填一填。（第1题4分，第2题18分，共22）1.（）个（）加法算式：。

乘法算式：。

2.把口诀补充完整。

10.七年级数学上册寒假作业答案参考 篇十

1.不变相乘(a)=a(1)10mnmn9(2)(212)3(3)612(4)x10(5)-a14

n2.乘方的积(ab)=a?b(1)27x3(2)-32b5(3)16x4y4(4)3na2n

二、夯实基础

1.D2.C3.A4.C5.D6.__√

7.(1)y18(2)x11(3)x12(4)107(5)y10

(7)-b6(8)a4(9)a6(10)-x7

8.(1)(6)x1412648xyz(2)?a3nb3m(3)4na2nb3n427

24632(4)?a?b(5)5ab(6)9x

(7)18mn(8)24ab

9.解:(1)原式=(0.125×2×4)6=16=1

(2)原式=(4664210031003231003100333)××=(×)×=1×=1×=322322222

三.拓展能力