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1、 1口算2p =3p =40% + 60% =1.7 - 70% =脱式12-0.4 =- 0.3 =23351+150% -1.1=150% - + 0.5 =3方程12213432x +1= 33 x + = 2x +2.5 = x -（0.2 - x）3245B36QP11 2口算脱式4p =8p =35% + 65% =2.25 - 25% =1434+0.6 =+ 0.2 =324+75% -1.5 =-1.2 +125% =5方程221141x -1= 51 x - = x +12 = x -（2 + x）334353B36QP11 3口算7p =9p =46% +154% =26
2、5% - 0.65 =脱式325-0.4 =- 25% =4231.5 - + 55% =- 30% + 0.6 =32方程14231412122311x - 2 = 3x -1=+x=x -（ + x）64B36QP11 4口算脱式1210p =12p =+1.5 =1.8 -130% =3514+35% =+ 30% =4332-1.25 + 25% =+ 25% - 0.75 =方程11331561x -1= 4x - 2 = - x=x -（1+ x）2443B36QP11 5口算脱式3416p =20p =+ 25% =2.8 -80% =123+40% =- 30% =3547+7
3、5% - 0.25 =- 55% - 0.75 =4方程1114128562x - =1x -1= x +=x +（1- x）326353B36QP11 6口算356p =11p =37% + 63% =1.6 -=脱式145+35% =+15% =21656+（40% - 0.25）=+ 20% - 0.8 =方程2334121212113x -=9 - x = x - 2= ( x -1) +x436B36QP11 7口算145p =18p =157% + 43% =1.25 -=脱式134+45% =+ 20% =5565-0.6 + 50% =+125% - 0.75 =3方程1314
4、233123512x -=10 - x = x - 3x =（ x + ）-43354B36QP11 8口算50p =24p =166% -16% =1.74 - 74% =脱式31+0.8 =+ 0.4 =561223-0.4 + 90% =-（0.3+ 20%）=方程131456112152x）- 312x +=9 - x = x +1x =（2 +5353B36QP11 9口算25p =36p =20% +80% =2.6 - 60% =脱式516-0.8 =+ 0.25 =6153+45% - 0.25 =+ 20% - 0.6 =4方程131614113425x +=5 - x =
5、x - 2x =（ + x）- 23456B36QP11 10口算452.5p =1.6p =33% + 67% =3.8 -=脱式55-0.6 =- 0.75 =63124+35% + 0.5 =+15% - 0.75 =5方程1214132132378x +=2 - x = x + 0.2=（1- x）+x524B36QP11 11口算30p =1.5p =77% + 23% =3.2 -120% =脱式74-0.75 =-1.25 =43141+30% + 0.7 =+ 0.65 - 40% =3方程23123423121x +=2.5 - x = x + 0.2x +（1- x）= 3
6、543B36QP11 12口算253540p =3.6p =+ 60% =1.6 -=脱式323-0.75 =1.5 -=2253-25% -10% =+ 35% - 0.25 =5方程23141314231x -=12 + x = x - 2x -（1+ x）= 5352B36QP11 13口算34350p =1.2p =+125% =1 - 75% =4脱式532-0.25 =- 30% =4342-（0.4 - 20%）=-（30% - 0.25）=3方程231121421611x -1=+x = x -x -（2 - x）= 34346B36QP11 14口算253848p =100p
7、 =240% -1=- 37.5% =脱式34+75% =+125% =25143+0.6 - 50% =+（0.2 -15%）=4方程133414135122x - 2 =+x = x -1x -（3- x）= 463B36QP11 15口算1849p =32p =+ 0.875 =1.35 - 35% =脱式313+150% =150% -=53516+0.8 + 60% =+ 0.4 - 50% =方程14238235111x -1=+x = x +1x -（ + x）= 156325B36QP11 16口算32p3 =p 22=30% +170% =1 - 60% =5脱式21+0.7
8、5 =+ 0.6 =336545+1.8 25% =125% +1.2 =方程121213112231611- x =x-x = x -1-（ x - ）=x43634B36QP11 17口算2p5 =p32=16% +84% =1.47 - 47% =脱式39-0.75 =+ 0.25 =4483383+0.6 = 75% - 0.5 =4方程31541331213112313 - x =x-x = x -x -（ + x）=43546B36QP11 18口算342p8 =p52=78% + 22% =+ 25% =脱式95-25% =-125% =4473761.5 20% = 0.75
9、40% =方程112 + x = x - 311251312568-x =xx +（ - x）=53352249B36QP11 19口算2p1.5 =p 62=31 + 0.5 =38% + 0.62 =2脱式523-120% =+ 20% =4761160.25 20% = 0.25 125% =方程1312534511147-x =x+x = x - 2x -（ - x）=4636B36QP11 20口算38452p 2.5 =p 42=62.5% +=1.8 -=脱式32-0.25 =+ 40% =43117560% 0.4 = 40%=667方程213347813111.8 - x =
10、x+x =1+x-（ x + ）= x52224B36QP11 21口算2p6 =p102=140% +160% =2.55 -55% =脱式45-60% =- 20% =337475%167=125%1.75 =214方程23121321342.3 - x =xx +1= 3+x3 x +（ - 2x）=5432B36QP11 22口算942p 2 =p 72=158% -58% =- 25% =脱式76+0.6 =+1.8 =551190.6 25% =125% 0.5 =64方程14231221137+x =xx -1= 5 +x1 x -（ + x）=3534B36QP11 23口算7
11、22p 4 =p 202=165% +1.35 =- 250% =脱式74+60% =+1.2 =55342323-0.75=+ 0.75 50% =方程1214214162311+x =xx - 2 = 3-xx +（ x -1）=324B36QP11 24口算142p1.8 =p82=+ 75% =1.66 - 66% =脱式78-40% =+ 0.6 =53341334-0.25 40% =+ 0.6 =方程141351223133+x =xx - 3 = 4 -xx -（2 - x）=64B36QP11 25口算3p 2 =p302=365% - 65% =脱式4.56 + 44% =
12、483-40% =- 0.5 =39450.8 - 25% =-125% 0.4 =4方程152351312123116+x =xx -=x +1+（ x -1）=x654B36QP11 26口算183p3 =p 402=3.875 +=1.9 - 90% =脱式77-1.5 =+ 0.25 =36945+0.2580% = 0.5 -120% =4方程121312334161212-x =xx -=x +9 -（ x - 2）=x643B36QP11 27口算2553p5 =p 23=3+160% =1 - 62.5% =8脱式711-0.75 =+ 0.25 =6623751.5 + 20
13、% =+ 60% 2.5 =方程741331314231313-x =xx -=+x10 -（ x - 3）=x564B36QP11 28口算脱式3p10 =p 24=144% +156% =1.08 -8% =117-60% =- 40% =664350.5 - 60% =- 20% 0.25 =3方程21+2x =5x13x +14=56-49x9 -（ x +1）=11x35253B36QP11 29口算1331 - 0.25 =4p 2 =p 25=140% +=54脱式574-0.4 =+125% =64370.75 - 40% = 0.4 + 0.6 =5方程25345131614
14、114+x =xx +=- x5 -（ x - 2）=x63B36QP11 30口算1454p 4 =p 26=275% +=3 - 0.625 =8脱式79-25% =-125% =4423751.5 + 40% =1.2 - 40% =方程123471211322 -（ x + 0.2）=12+x =xx + = x -x845B36QP11 参考答案练习 1:练习 4:31.4601.289.421137.680.55120.5110.10.95351333542333165241020练习 2:练习 5:12.5625.120.950.851250.2462.811121100.85.
15、7515301.750.45789218530209练习 3:练习 6:18.8421.98.3528.262234.540.951100.15.80.858630196015871301585123202B36QP11 练习 7:练习 10:15.756.520.95217.8575.0241311120.6513011361.350.215114511224446练习 8:练习 11:1115775.361.5194.214.7112171127.43011.2536127591521248练习 9:练习 12:78.5113.0412125.611.3041115560.7530120.
16、40.3520.050.7149657813036B36QP11 练习 13:练习 16:11573.7681.22118.8412.5621172141513700.5551.652.2618532123128练习 14:练习 17:150.723141031.4028.262.5112.25.352.050.85201.51533521511612482练习 15:练习 18:153.86100.481150.24278.50117612.1720.7152020185454259214153B36QP11 练习 19:练习 22:12.5629.42.05113.0441153.8631
17、213501145881511400.91144557836126121516练习 20:练习 23:15.750.241125.1212562311650.521115251214651362115144218练习 21:练习 24:11.304137.6831432200.9611112215491515429171510.650312331612220B36QP11 练习 25:练习 28:18.8428263594.250.242331145136137303013151.550.751645151094543415练习 26:练习 29:28.2650244125.12100.48343561712133022.451.362925524524512111216练习 27:练习 30:47.125.125150.24200.9633525121211.5.41295294102330151112827624B36QP11