2022年新课程课堂同步练习册八年级上册华东师大版数学答案3.docx

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1、精选学习资料 - - - - - - - - - many other pre no money for devellous cold water fish. Mineral resour opme nt, transformation where ces, has pr oved many of the gold ore body, hig did the money come from still outstanding. From th grade, large reserves, reserves of more tha he per spe ctive of talent short

2、 Boarn 170 milli on t ons of lignite, iron, vana dium a d, my talent shortage, low overall qualit y, irrational nd titani um magnetite reserve struct ure, weak overseas tals prove ents ie n 6 milli nto local seri on cubi c meters, 40 milli i ous brain -drai n, espeon t ons of quart cially hig h-e nd

3、 talez sand de nts baposit reserv es, the rare. ) From the short plate, Wood dl y, has become the devel opment of controlKes continued i ndustry weak, support i y i ssues. If the se short Board neither avoid s not str ong, espe cially inade quate for pr nor overcome , not padded, transformation aoce

4、 ssi ng, there are nd development no resour ces to make good products, marketing is not e cannot be achieved i n forest areas. Se cond, t hink calmlynoug h, there are no good pr , calmly. A l ocal e conomioducts sell for a good pri ce. Livelihood weak c devel opme nt, strengths and weak nesse s are

5、dyness, my district is l ocate d in t he border area, t namic a nd re ciprocal transformation, there ihe climate is co s no absolute al d, for many years of the masses dvantages a nd disadvantages, aof workers hav dvantages a nd e a hard life, a nd compl disadva ntages of nothipl ete the buil ding o

6、f forest society s weakne ng, as t he time, pla ce, a nd cha nges in extere sses are mainly concentrated i nal conditions, adva ntages couln the area of pe d be come disae oples l dvantagesivelihood, especi ally in terms of poverty, t , disadva ntages may also be to y our advahe task is st ill very

7、arduous. From the ntage. For example , my good e cological perspective of short-term capital environment, la nd development later, distri , ict financial situation at prese s the nation s most dare rint tense, some fina ncia l de bts to repa y, is basically living money, ng of green a nd organic foo

8、d, but the se years are basically kind of traditional crops such as soybean, wheat, especially the heavy use of chemical fertilizers and pestici i des, the ecol ogical advantages of agricultural l development are being degraded. For example, ice and snow were our weaknesses, sought after now, with v

9、isitors to the snow and ice in the South, but the development of eco-tourism of gold and silver. For example, our regi on i i s located in the border area, has been our weakness today as the country along the way, and long Jiang Silk Road building farther forward, but is expecte d to be ope ned t o

10、the Russian frontier. (From XXs situation, while our railways, ports a nd other proje cts has not fought for, but with the Mongolia-Russia economic corridors 65 policy and stea dy growth benefits of further releases, provide opportunities for our pr r ojects, paving projects in the early County, in

11、the Thirteen-Fiv e period will very likely get a specific impleme e ntation). Practice has proved that adversity is short or long新课程课堂同步练习册 数学( 华东版八年级上 ) 参考答案 第 12 章 数的开方 12.1 平方根与立方根（一）一、 1.B 2.A 3.B 二、 1. 49 , 7 2. 2, 2 3.-1； 4.0三、 1. 从左至右依次为 : 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15.2. （1） 25

12、 （2） 0.01 （ 3）4 5（4）2 (5) 100 (6) 2 93. （1） 0.2 （2） 3 （3）7 9（4）174（1）a-2 (2)a=-2 (3)a-2. 12.1 平方根与立方根（二）一、 1. D 2.A 3.C或 1. 二、 1.1, 1 4 2.10 ,10 3.（1）25.53 （2）4.11 4. 04三、 1. （1） 80 （ 2）1.5 （3）11（4） 3；2.(1)-9 (2) 1 (3)4 (4)-5 42 3. （1） 2.83 （2）28.09 （3）-5.34 （4） 0.47. 4. 正方形铁皮原边长为5cm. 12.1 平方根与立方根（三

13、）一、 1. D 2.A 3.C 二、 1. 327 ，-3 2. 6，-343 3.-4 4. 0，1，-1. ；三、 1. （1） 0.4 （2） -8 （ 3）5 6（ 4）11 (5)-2 (6)10022. （1） 19.09 （2）2.652 （3）-2.098 （4）-0.9016 ； 3. 63.0cm 2；4计算得： 0.5151 ，5.151 ，51.51 ，515.1 ，得出规律：当被开方数的小数点向左（右）每移动2 位，它的平方根的小数点就向左（右）移动1 位. 由此可得0.002653 0.05151, 265300005151. 12.2 实数（一）一、 1.B 2

14、.C 二、 1. 略 2. 3 3. x1. 2三、 1. （1）（ 2） （ 3）（ 4） （ 5） （ 6） （ 7）（ 8） ； 2.有理数集合中的数是：1， 3.1415 ，2，16 ，-5 ，0，6.34，0.8 3无理数集合中的数是：7 ,3 4 ,0.1010010001 ； 3.A 点对应的数是 -3 ， B点对应的数是 -1.5 ，C点对应的数是2 ，D点对应的数是5 ，E 点对应的数是. 12.2 实数（二）一、 1.C 2.B 3.B 二、 1. e must deal with it calmly, neither keep adva2 ，omissi2 2.en l

15、ong and short, effective enhanceme（ 1）31（2） 2nd avoid, g, fill each have a logi3 3. 5 . s of nature, all time, place and conditions for the transfer, targeted preci sion application policy. US weaknesses, is to play to strengths and avoid weaknesses. Like, in industry development Shang, prefectural

16、proposed devel opment six big industry, the County District Council must to hort and make up for long. Long and short, rational thought, keeping the force, wnt initiative, to better promote the transformation and development. Tntages do not, missed opportunities, also faced short ons, loss of confid

17、ence , we must correctly understand and handle the relationshi p betwehree local conditions, home opathy for. Foster strengths and circumvent weakne sses, short swagger grams, yangcha ngbuduan, have in common is that swagger, acal relationship. We must adhere to local conditions and homeopathy for,

18、full com pliance with the rule of law, market economy and the lawrelies on re sources a dvantage, find associ ate industry positi oni ng, put local most ha s competition adva ntage, and most ha s devel opme nt pote ntial of industry first do up, nev er can ta nda qiuqua n, a nd bl ind foll ow, and m

19、ake with quality of competiti on, for those obviously not for local development of industry to strongly av oid, cannot Shang of pr oject never ca n took Hard on my forehea d. We talk a bout swagger g short was t o build stre ngths t o overcome weak nesse s. For example , on t he adjustment of agricu

20、lt ural pla nting structure , I just a little, short frost-free peri od and l ow temperatur , with traditionally grow n soy bea ns, w heat and other crops i n low yiel ds, poor quality, t here is no adva ntage, it difficult for farmers to a chieve sustai nabl e incomes. Only g uide t he pe asants t

21、o do organi c, hig h-end, really good kind of good products, cold region and bl ack Gle be e col ogical a dvantag es and a dvantages play out, my area of agricult ural devel opme nt in or der to find a way. Us yangcha ngbudua n, is t o 名师归纳总结 have to swall forest transition ow some of the effects of

22、 transformati n XI General Se cretaryon and development of the short Board. (Specific to the XX, we seize the Korea n bla ck railway int t o the province, along the way implementati ti on opportunities, promoting the construction of railway projects al ong the River, in the Thirteen-Five plan promot

23、ing the proje ct, under construction. Pay special attention to provincial highway XX to nenjia ng road tender call to sophisticated shops, the national highway from Dandong to Altay XX to 18 stations and commuter airport renovation and ex pansion work, promote XX infrastructure in Hong Kong, planne

24、d openi i ng water transport channel, and construct land, water and air transportation networks). Homeopathy for as long as we are in li i ne with local cconditi ons, in the play long fuss, in addressing the short work on weaknesses, short swagger grams, yangcha ngbuduan, will be able to achieve the

25、 e development goals. Second, focus on economic construction as the Center, pushing forward 第 1 页，共 9 页- - - - - - -精选学习资料 - - - - - - - - - many other pre no money for devellous cold water fish. Mineral resour opme nt, transformation where ces, has pr oved many of the gold ore body, hig did the mon

26、ey come from still outstanding. From th grade, large reserves, reserves of more tha he per spe ctive of talent short n 170 milli on t ons of lignite, iron, vana dium a Boar d, my talent shortage, low overall qualit y, irrational nd titani um magnetite reserve struct ure, weak overseas talals prove e

27、nts ie n 6 milli nto local seri on cubi c meters, 40 milli i ous brain -drai n, espeon t ons of quart cially hig h-e nd talez sand de nts baposit reserv es, the rare. ) From the short plate, Woods continued i dl y, has become the devel opment of controlKey i ssues. If thendustry weak, support i se s

28、hort Board neither avoid s not str ong, espe cially inade quate for pr nor overcome , not padded, transformation aoce ssi ng, there are nd development t no resour ces to make good products, marketing is not e cannot be achieved i n forest areas. Se cond, t hink calmly, noug h, there are no good pr ,

29、 calmly. A l ocal e conomioducts sell for a good pri ce. c devel opme nt, strengths and weakLivelihood weak nesse s are dyness, my district is l ocate d in t he border area, t namic a nd re ciprocal transformation, there ihe climate is co s no absolute al d, for many years of the masses dvantages a

30、nd disadvantages, aof workers hav e a hard life, a nd compl dvantages a nd disadva ntages of nothipl ete the buil ding of forest society s weakne ng, as t he time, pla ce, a nd cha nges in extere sses are mainly concentrated i nal conditions, adva ntages couln the area of pe d be come disae oples l

31、dvantages, ivelihood, especi ally in terms of poverty, t , disadva ntages may also be to y our advahe task is st ill very arduous. From the ntage. For example , my good e cological perspective of short-term capital environment, la nd development later, i, distri , ict financial situation at s the na

32、tion s most darpres re nt tense, some fina ncia l de bts to repa y, is basically living money, e ri ng of green a nd organic food, but the se years are basically kind of traditional crops such as soybean, wheat, especially the heavy use of chemical fertilizers and pestici i des, the ecol ogical adva

33、ntages of agricultural development are being degraded. For example, ice and snow were our weak nesses, sought after now, with visitors to the snow and ice in the S outh, but the development of eco-tourism of gold and silver. For example, our regi on i i s located in the border area, has been our wea

34、kness today as the country along the way, and long Jiang Silk Road building farther forward, but is expecte d to be ope ned t o the Russian frontier. (From XXs situation, while our railways, ports a nd other proje cts has not fought for, but with the Mongolia-Russia economic corridors 65 policy and

35、stea dy growth benefits of further releases, provide opportunities for our projects, paving projects in the early County, in the Thirteen-Fiv e period will very likely get a specific impleme e ntation). Practice has proved that adversity is short or long三、 1. （1） 3 6 2 7（ 2）7 2 4 5（3）17 536 ；2. （1）

36、7.01 （2）-1.41 （3）2.74 3. 略 4. 7 第 13 章 整式的乘除 13.1 幂的运算 ( 一) 一、 1.C 2.B 3.D 二、 1.10 10 2. 6 ， 8 3. 9 x10 y ) (5)2x8（6）b5 n1 (2)9 a (3)6 a (4)(三、 1.(1)10 a2. 可进行1014次运算 3. 2 13.1 幂的运算 ( 二) 一、 1.D 2.B 3.C 二、 1.10 m，18 x 2.x21x14 3.6 2y ；4. 2 （6）a2n3 2bac三、 1. （1）9 a （2）（3）2a15（4）12 3a（5）0 13.1 幂的运算 ( 三

37、) 一、 1. C 2.D 3.A 二、 1. 4 109x y,19 6 3a b c 2. 4 4m ,5 4a b 3. 216 98三、 1.(1) 3 327x y (2)4 64x y (3) 8 5a (4)27a2. (1) 1 (2) 3 3x=5 4.52 13.1 幂的运算 ( 四) 一、 1.C 2.A 3.B 二、 1.8 a ,2 a 2. y ，5 y 3.2 2x y ，x54 y 2. x1y2三、 1.(1)3 a (2)3 m (3) 5 x (4) 4 x (5)1 (6) 13.2 整式的乘法 ( 一) 一、 1.B 2.D 二、 1.2 32x y

38、2.-15 4x y z 3.15 x y36 2 8a b c (5)(xy )10 (6)3.6101722三、 1.(1)125 4a b (2)-23 x y (3)-404 4a b (4)-182. 2.377 10 3. a1, b1,c23 13.2 整式的乘法 ( 二 ) 名师归纳总结 hort and make up for long. Long arelies on re sources a dvantand short, rati dvantage, find associate ional thoug ndustry positioning ht, keepi g ,

39、 png the force, we must , put l ocal most has deal with it competiti on acalmly, neither kee dvantage, a nd most p advantage has developmes do nt potentinot, missed al of industryd opportunities, al first do up, never al so faced short omissions, loss of confidence, we must correcan tanda qiuqua n,

40、and bli nd foll ow, a nd make wit ctly understa wit h qua lity nd a f compend handle the relati tition, for those ons obvihi p betweeously not for ln long and short, ef ocal developf fective enhament of industry to nceme stnt initiative, to strongly avoi d, canbetter prom not Sha ngote the transform

41、ati ng of project nev er can ton a ook Har nd development. T ar d on my forehea T hree local conditions, homeopathy for. Foster strengths and circumvent weaka d. We talk about swagger g short was t o build stre ngths to nesse overcome weakne sses. s, short swagger grams, ya sses. For example, on the

42、 aya ngchangbuduan, have in djustment of agricultural placommon is that sw nting str uct ure, I just a liagger, a ttle, shornd avoi t frost-free pd, g, fill each have a l eri od aogical relati nd l ow temperti onshi p. We must aature, with traditionally growndhere to local conditions and homeopat so

43、y beans, wheat a nd other hy for, full complia crops in low yields, pnce with the r oor quality, tule of la here is w , market economy and the law no adva ntage, it difficult for farmers of nature, a to achieve sustaill time, place and co nable i ncomenditi s. Oons for the transfer, targeted precision applicatinly gui de the peasa nts to do orga nion poli cy. US weaknec, high-end, really good ki nd of good sse s, is to play t products, colo strengths and avo