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          (jng)L꼉W(sh)}

          rg2021-03-02 11:42:16 W(sh)} ҪͶ

          (jng)L꼉W(sh)}2017

          (do)Z,䌍~ɹ(yng)UČW(xu)MС(sh)W(xu)֪RP(gun)ϢՈP(gun)עCNFLAW(xu)(x)W(wng)!

          һ С(sh)

          (һ)}

          1. Ӌ 1.996+19.97+199.8=_____

          𰸣221.766

          ԭʽ=(2-0.004)+(20-0.03)+(200-0.2)

          =222-(0.004+0.03+0.2)

          =221.766

          2. Ӌ 1.1+3.3+5.5+7.7+9.9+11.11+13.13+15.15+17.17+19.19=_____ 𰸣103.25

          ԭʽ=1.1(1+3+„+9)+1.01(11+13+„+19)

          =1.125+1.0175

          =103.25

          3. Ӌ 2.894.68+4.686.11+4.68=_____

          𰸣46.8

          4.68×(2.89+6.11+1)=46.8

          4. Ӌ 17.4837-17.4819+17.4882=_____

          𰸣1748

          : ԭʽ=17.48×37-17.48×19+17.48×82

          =17.48×(37-19+82)

          =17.48×100

          =1748

          5. Ӌ 1.250.322.5=_____

          𰸣1

          ԭʽ=(1.250.8)(0.42.5)

          =11

          =1

          6. Ӌ 754.7+15.925=_____

          𰸣750

          ԭʽ=754.7+5.3(325)

          =75(4.7+5.3)

          =7510

          =750

          7. Ӌ 28.6767+3.2286.7+573.40.05=____

          𰸣2867

          ԭʽ=28.6767+3228.67+28.67(200.05)

          =28.67(67+32+1)

          =28.67100

          =2867

          ()}

          8. Ӌ 172.46.2+27240.38

          𰸣ԭʽ=172.46.2+(1724+1000)0.38

          =172.46.2+17240.38+10000.38

          =172.46.2+172.43.8+380

          =172.4(6.2+3.8)+380

          =172.410+380

          =1724+380

          =2104

          9.

          𰸣181λ,11ǃλ,˺18111=1991λ,λӃλλ,1991ǰ߀Ҫһ0,963+1028=1991,

          0. 00„01810.00„011=0.00„01991

          9630 10280 19920

          10.Ӌ 12.34+23.45+34.56+45.67+56.78+67.89+78.91+89.12+91.23 𰸣9Ӕ(sh),ʮλλʮλٷλĔ(sh)1~9 ԭʽ=11.11(1+2+„+9)

          =11.1145

          =499.95 

          (sh)

          (һ)}

          1. λ(sh)“3AA1”9ı(sh)ôA=_____

          𰸣7

          ֪λ(sh)3AA19ı(sh),tλ(sh)֮3+A+A+1һ9ı(sh),912,ԇ򞷨ԇ֮

          O(sh)3+A+A+1=9,tA=2.5,}.O(sh)3+A+A+1=18,tA=7,}⡣Œ,37719=419

          2. “2579@(sh)ġ(ni)һ(sh),ʹ@(sh)ܱ11,(ni)(yng)_____

          𰸣1

          @(sh)攵(sh)λϔ(sh)ֺcż(sh)λϔ(sh)ֺ֮011ı(sh),ô@(sh)ܱ11.ż(sh)λϔ(sh)ֺ5+7=12,,攵(sh)λϔ(sh)ֺ2++9(yng)12,(ni)(yng)12-2-9=1

          3. ͬr235λ(sh)_____

          𰸣990

          Ҫͬrܱ25,@λ(sh)Ăλһ0Ҫܱ3,Ҫλ(sh),@(sh)990

          4. ͬr257λ(sh)_____

          𰸣99960

          ⷨһ: ܱ25,λ(sh)(yng)0,(sh)λϱMȡ9,7ȥ9990,֪(ni)(yng)6,ͬr257λ(sh)99960

          ⷨ: @,2,5,7С(sh)70,ܱ70Сλ100030pȥ70Ȼ70ı(sh),ܱ2,5,7λ(sh)100030-70=99960

          5. 1100ԃ(ni)вܱ3Ĕ(sh)ĺ_____

          𰸣3367

          1~100@100(sh)ĺ,100ԃ(ni)ܱ3Ĕ(sh)ĺ,϶֮вܱ3Ĕ(sh)ĺ͡

          (1+2+3+„+100)-(3+6+9+12+„+99)

          =(1+100)2100-(3+99)233

          =5050-1683

          =3367 

          6. ܱ3ăλ(sh)ĺ______

          𰸣1665

          ܱ3Ķλ(sh)С12,99,ܱ3Ķλ(sh):

          12,15,18,21,„9699

          @һД(sh)30(sh)͞

          12+15+18+„+96+99

          =(12+99)302

          =1665 

          7. ֪һλ(sh)691ܱ55,з}λ(sh)_____ 𰸣9691046915

          λ(sh)A691Bܱ55,λ(sh)ܱ5,ܱ11B=05(dng)B=0r,A6910ܱ11,(A+9+0)-(6+1)=A+2ܱ11,A=9;(dng)B=5r,ͬӿA=4,λ(sh)9691046915 ()}

          8. 173ǂλ(sh)(sh)W(xu)ώf“@Ⱥ3(sh),

          õ3λ(sh),οɱ9116”(sh)W(xu)ώȺ3(sh)ֵĺǶ?

          𰸣ܱ9λ(sh)ĸλ(sh)ܱ֮9

          1+7+3+=11+

          ∴(ni)ֻ7

          ܱ11λ(sh)ĂλcλĔ(sh)ֺ͜pȥʮλcǧλĔ(sh)ֺõIJܱ11

          ∴ (7+)-(1+3)=3+ ܱ11, ∴(ni)ֻ8

          ܱ6Ȼ(sh)ż(sh),Ҕ(sh)ֺܱ3,

          1+7+3+=11+, ∴(ni)ֻ4

          ,(sh)֮7+8+4=19

          9.1992a(sh)֣Mһλ(sh)ʹքeܱ23511@λ(sh)СֵǶ?

          O(sh)aϵ(sh)ֽMλ(sh)abc,@λ(sh)ܱ2,5,fc=0; @λ(sh)ܱ3֪1+9+9+2+a+b+c=21+a+b+cܱ11Ķa+bܱ3;@λ(sh)ܱ11֪(1+9+a+c)-(9+2+b)=a-b-1ܱ11;Mɵλ(sh)(yng)ԓС,ȡa+b=3,a-b=1,Ķa=2,b=1 @Сλ(sh)1992210

          [ע]СͨĽⷨ:(j)@λ(sh)քeܱ2,3,5,11ėl,@λ(sh)ض2,3,5,11Ĺ(sh),2,3,5,11С(sh)23511=330@

          ,1992000330=6036„120˷}λ(sh)(yng)(6036+1)Ĕ(sh), 1992000+(330-120)=1992210

          10.“ĸ”ĺ,˂ֻҪ,ǿ԰уɏʳƷƱQ3Ʊȯ,ҲԷ^Qԇ,ɆTܷ100SƱQ100cƱ,Q^Єó1991Ʊȯ?

          𰸣ܡ

          ԭ100Ʊ,߀100Ʊ,˶ٴ“ɓQ”,ôҲ˶ٴ“Q”,һ2k+3k=5kƱ,19915ı(sh)

          |(zh)(sh)cϔ(sh)

          (һ)}

          1. һλȻ(sh)攵(sh)Ǻϔ(sh)_____;ȲǺϔ(sh)ֲ|(zh)(sh)_____;ż(sh)|(zh)(sh)_____

          𰸣912

          һλȻ(sh),攵(sh):1,3,5,7,9,ЃH9ϔ(sh),ʵһ9

          һλȻ(sh),|(zh)(sh)2357ϔ(sh)4689ԼȲǺϔ(sh)ֲ|(zh)(sh)Ğ1

          һλȻ(sh),ż(sh)2468Լż(sh)|(zh)(sh)Ĕ(sh)2

          2. С|(zh)(sh)cӽ100|(zh)(sh)ij˷e_____

          𰸣202

          С|(zh)(sh)2,ӽ100'|(zh)(sh)101,ij˷e2101=202

          3.ɂȻ(sh)ĺcķe41ô@ɂȻ(sh)ķe_____ 𰸣420

          ע⵽41|(zh)(sh),ɂȻ(sh)ĺcķe41,ҊIJ1,@ǃɂBm(x)Ȼ(sh),(sh)21,С(sh)20,@ɂȻ(sh)ķe2021=420

          4. ʽзքe|(zh)(sh),ʹʽ

          ++=50

          𰸣2543

          ӽ50|(zh)(sh)43,ٌ7ֲ|(zh)(sh)2c|(zh)(sh)5ĺ.

          2+5+43=50

          2+19+29=50

          2+11+37=50

          [ע]ΨһҲԌ

          41+2+7=50

          5. Bm(x)Ȼ(sh)ķe1716,@Ȼ(sh)_______________ 𰸣11,12,13

          1716ֽ|(zh)(sh)ã

          1716=2231113

          =11(223)13

          ɴ˿Կ@(sh)11,12,13

          6. ҳ1992еIJͬ|(zh)(sh),ĺ_____

          𰸣88

          Ȱ1992ֽ|(zh)(sh),ȻѲͬ|(zh)(sh),ĺ

          1992=222383

          1992вͬ|(zh)(sh):2,3,83ĺ

          2+3+83=88

          7. Ȼ(sh)Ăͬ|(zh)(sh), ô@ӵȻ(sh)С_____ 𰸣210

          СĂ|(zh)(sh)2,3,5,7,Ăͬ|(zh)(sh)СȻ(sh)

          2357=210

          ()}

          8.235711„|(zh)(sh)Ҳfÿ(sh)ֻ1s(sh)֪һLεL͌|(zh)(sh)λ,L36λ@LεeǶقƽλ?

          𰸣L+ 362=18

          18ʾɂ|(zh)(sh) 18=5+13=7+11

          Lεe 513=65711=77

          Lεe77ƽλ

          9. 71420212830ֳɃɽMÿ(sh)ʹɽM(sh)ij˷e 𰸣Ȱ714,20,21,28,30ֽ|(zh)(sh),@(sh)йĎׂ|(zh)(sh),ٷ?jn)ڃɽM,ʹɽM(sh)˷e

          14=72 20=225

          21=37 28=227

          30=235 7

          傀(sh)ֽ|(zh)(sh),B7ڃ(ni)|(zh)(sh)Ă7,2,3,5,ÿM(sh)һҪ2,һ3,һ5,7

          (sh)ɷֳƒɽM(ַΨһ):

          һM: 72830

          ڶM142120

          72830=142120=5880MҪ

          [ע]}P(gun)Inj},ץס}ĿеP(gun)I~Z“ʹɽM(sh)ij˷e”|(zh)ҪɽM|(zh)(sh)ͬ,ͬ|(zh)(sh)F(xin)ĴΔ(sh)Ҳͬ

          10. W(xu)1430˅ӈF(tun)w,ֳ˔(sh)ȵ,ÿ˔(sh)100200֮g,Ď׷Nַ?

          𰸣1430ֽ|(zh)(sh)ã

          1430=251113

          (j)}ĿҪ,(yng)251113xɂ(sh)ʹij˷e100200֮gǵN𰸣

          (1)2511=110;

          (2)2513=130;

          (3)1113=143.

          ,Nַ:һNǷ֞13,ÿ110;Ƿ֞11ÿ130;Ƿ֞10ÿ143

          s(sh)c(sh)

          1.28мs(sh)֮_____

          𰸣56

          28ļs(sh)1,2,4,7,14,28,ĺ͞

          1+2+4+7+14+28=56

          2. 105СͬƴһL,_____Nͬƴ 𰸣4

          105ļs(sh)1,3,5,7,15,21,35,105ƴɵLεLcքe1051,353,21c5,15c7ƴ4NͬL

          3. һλ(sh),ʮλ(sh)֜pλ(sh)ֵIJ28ļs(sh),ʮλ(sh)cλ(sh)ֵķe24.@λ(sh)_____

          𰸣64

          28=227,28ļs(sh)6:1,2,4,7,14,28ڔ(sh)0,1,2,„9Уֻ6c4֮e8c3֮e246-4=28-3=5ʷ}ĿҪăλ(sh)H64

          4. ώI(lng)һW(xu)ȥN,W(xu)ǡñƽֳĂСM,N667,ÿ˷NĿÔ(sh)һӶ,ô@๲ЌW(xu)_____

          𰸣28

          667=2329,@ÿ˷NĿÔ(sh)ֻ667ļs(sh):1,23,29,667.@Ȼ,ÿ˷N667Dzܵ

          (dng)ÿ˷N29Ør,ȫ˔(sh)(yng)23-1=22,22ܱ4, (dng)ÿ˷N23Ør,ȫ˔(sh)(yng)29-1=28,28ǡ4ı(sh),}ĿҪ

          (dng)ÿ˷N1Ør,ȫ˔(sh)(yng)667-1=666,666ܱ4, ,һ๲28W(xu)

          5. ɂȻ(sh)ĺ50,󹫼s(sh)5,t@ɂ(sh)IJ_____ 𰸣4020

          ɂȻ(sh)ĺ50,󹫼s(sh)5,@ɂȻ(sh)545,1535,IJքe(45-5=)40,(35-15=)20,ԑ(yng)4020

          [ע]@P(gun)I󹫼s(sh)5ėl,50ֲɔ(sh)֮:50=5+45=15+35

          6. F(xin)36,108,ֽoɂС,Ҫÿõ攵(sh),۔(sh),ɷֽo_____С,ÿСѵ_____,_____

          𰸣36,1,3

          Ҫ36108ֽoɂСѣҪÿõ攵(sh)Сѵ˔(sh)һ36ļs(sh)Ҫ108ļs(sh)һ36108Ĺs(sh).ҪɷֽoقС,֪Сѵ˔(sh)36108󹫼s(sh)36108󹫼s(sh)36,Ҳǿɷֽo36С

          ÿСѿɷֵ: 3636=1(ֻ)

          ÿСѿɷֵý: 10836=3(ֻ)

          ,ɷֵ36С,ÿСѿɷֵ1ֻ,3ֻ

          7. һKL4842׵IJM߅ܼβƬ_____K

          𰸣56

          βƬ߅LܷքeLεL48׼42,48c42Ĺs(sh),}ĿҪ,ε߅L48c42󹫼s(sh)

          48=22223,42=237,48c42󹫼s(sh)6@,ε߅L6ɴ˿ɰ·:L߅ÿż8K,߅ɼ7K,ɼ(486)(426)=87=56(K)βƬ

          8.С20Ȼ(sh)ʹ󹫼s(sh)1Ƀɾ|(zh)ՈжٽM@N?

          𰸣M

          (sh)|(zh)(sh),ǃɂ|(zh)(sh)ij˷e,Ƀ֮g󹫼s(sh)ֻܷքe2,35,@NȻ(sh)6,10,1512,10,1518,10,15M

          9.͞1111ĂȻ(sh)󹫼s(sh)܉Ƕ?

          𰸣Ă(sh)󹫼s(sh)@Ă(sh)ĺ,Ҳf󹫼s(sh)(yng)ԓ1111ļs(sh)1111|(zh)(sh)ֽ,

          1111=11101

          󹫼s(sh)1111,ܔ(sh)101.101,t@Ă(sh)քe101,̵ĺ͑(yng)11F(xin)

          1+2+3+5=11,

          Ă(sh)

          101,1012,1013,1015,

          ĺǡ

          101(1+2+3+5)=10111=1111,

          󹫼s(sh)101101

          1310.؂SM(jn)Sِ؂ÿ4Sÿ224

          3ÿ状ֻһ.ِ;,c_ʼÿ12O(sh)һݾ,(dng)֮8

          һM(jn)ݾr,һ˶? 3399𰸣SǵM(jn)ݾrг̑(yng)ԓ2c12“С(sh)”484

          139911=9εM(jn)ݾ؂M(jn)ݾrг̑(yng)ԓ412“2844

          99999С(sh)”=11εM(jn)ݾ 222

          (jng)^^֪,SȵM(jn)ݾ,@r؂г149=40.5() 2

          (jng)L꼉W(sh)}2017P(gun)£

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