(-8.76)+9.875+(-war3 1.24e)+2.125怎么算

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小学六年级数学总复习资料
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内容提示:小学六年级数学总复习资料(六) 【简便计算】。班级: 姓名:。一、口算下面各题。(23分)。10-2.65= 0.9×0.08= 528-349= 6+14.4= 24÷0.04=。12.34-2.3= 0÷3.8= 0.77+0.33= 7÷1.4= 67.5+0.25=7.2÷8×4= 5-。1.4-1.6= 400÷125÷8= 1.9×4×0.5=。80×0.125= 3× = 6 6= 2 -( + )= 10 2=。3.2×7÷3.2×7= ( - )×12= 187.7×11-187.7= 1- 62.5%=。二、写出下列每题在简便运算时所运用的定律或性质(12分)。4 +3.2+5 +6.8 25×(8×0.4)×1.25 7 -(2 - )。( ) ( ) ( )。( + + )×72 93.5÷3 16÷2.5。( ) ( ) ( )。三、用简便方法计算。(65分)。8+ (+87)÷87。 。125×8.8 1.3+4.25+3.7+3.75 17.15-(3.5-2.85)。 。3.4×99+3.4 4.8×1.01 0.4×(2.5÷73)。 。(1.6+1.6+1.6+1.6)×25 ( + - )÷。 。12.3-2.45-5.7-4.55 2 + 0.125×0.25×64。 。64.2×87+0.642×+7.8×741-7 17+ 8。 。0.125× +0.5 2.42 +4.58 -43。 。25÷100 4.25-3 -(2 -1 )。 。(1)1.25*17.6+36.1/0.8+2.36*12.5。1.25*17.6+36.1/0.8+2.36*12.5。=(5/4)*17.6+36.1*(5/4)+23.6*(50/4)。=176/8+361/8+23
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求100道初一计算题
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1.(1+1/2)(1+1/3)(1+1/4)......(1+1/100) 2.(1-1/2)(1-1/3)(1-1/4)......(1-1/100) 3.8+2-8+2 4.25*4/25*4 5.7.26-(5.26-1.5) 6.286+198 7.314-202 8.526+301 9.223-99 10.6.25+3.85-2.125+3.875 11.9-2456*21 12.0.5/11.5-4*2.75 13.1/2×3/5 14.3.375+5.75+2.25+6.625 15.÷18 16.3.8×5.25+14.5 17.2.1*4.3+5.7*2.1 18.30×1/3 19.102*45-328 20.2/3×12 21.2.8*3.1+17.6/8 22.3/5×5/6 23.(50-12.5)/2.5 24.2/5×1/3 25. 26.1/2-1/6 27.3.5*2.7-52.2/18 28.1/7×1/5 29.3.375*0.97+0.97*6.625 30.25×4/5 31.6.54+2.4+3.46+0.6 32.5/6-1/2 33.95.6*1.8+95.6*8.2 34.1/2×1/5 35.600-420/12 36.344/3.6-5.4*0.25 37.16/2+30/2+90/6 38.. 39. 40.0.15/0.25+0.75*1.2 (1)2x+8=16 (2)x/5=10 (3)x+7x=8 (4)9x-3x=6 (5)6x-8=4 (6)5x+x=9 (7)x-8=6x (8)4/5x=20 (9)2x-6=12 (10)7x+7=14 (11)6x-6=0 (12)5x+6=11 (13)2x-8=10 (14)1/2x-8=4 (15)x-5/6=7 (16)3x+7=28 (17)3x-7=26 (18)9x-x=16 (19)24x+x=50 (20)6/7x-8=4 (30)3x-8=30 (31)6x+6=12 (32)3x-3=1 (33)5x-3x=4 (34)2x+16=19 (35)5x+8=19 (36)14-6x=8 (37)15+6x=27 (38)5-8x=4 (39)7x+8=15 (40)9-2x=1 (41)4+5x=9 (42)10-x=8 (43)8x+9=17 (44)9+6x=14 (45)x+9x=4+7 (46)2x+9=17 (47)8-4x=6 (48)6x-7=12 (49)7x-9=8 (50)x-56=1 (51)8-7x=1 (52)x-30=12 (53)6x-21=21 (54)6x-3=6 (55)9x=18 (56)4x-18=13 (57)5x+9=11 (58)6-2x=11 (59)x+4+8=23 (60)7x-12=8 (61)X-5.7=2.15 (62)15 5X-2X=18 (62)3X 0.7=5 (63)3.5×2= 4.2 x (64)26×1.5= 2x (65)0.5×16―16×0.2=4x (66)9.25-X=0.403 (67)16.9÷X=0. 3 (68)X÷0.5=2.6 (69)x+13=33 (70)3 - 5x=80 (71)1.8- 6x=54 (72)6.7x -60.3=6.7 (73)9 +4x =40 (74)0.2x-0.4+0.5=3.7 (75)9.4x-0.4x=16.2 (76)12 -4x=20 (77)1/3 x+5/6 x=1.4 (78)12 x+34 x=1 (79)18x-14 x= 12 (80)23 x-5×14 = 14 (81)12 +34 x=56 (82)22-14 x= 12 (83)23 x-14 x= 14 (84)x+14 x= 65 (85)23 x=14 x +14 (86)30 x-12 x -14 x=120.4×125×25×0.8 =(0.4×25)×(125×0.8)=10×100=1000 1.25×(8+10) =1.25×8+1.25×10=10+12.5=22.5 9123-(123+8.8) =.8==8991.2 1.24×8.3+8.3×1.76 =8.3×(1.24+1.76)=8.3×3=24.9
=9999×(1000+1)=+9999×1 = 14.8×6.3-6.3×6.5+8.3×3.7 =(14.8-6.5)×6.3+8.3×3.7=8.3×6.3+8.3×3.7 8.3×(6.3+3.7) =8.3×10 =83 1.24+0.78+8.76 =(1.24+8.76)+0.78 =10+0.78 =10.78 933-157-43 =933-(157+43)=933-200=733
==3823 I32×125×25 =4×8×125×25 =(4×25)×(8×125)=100×1000 =100000 =(00+1248)÷26=0÷26+8÷269 =100+100+100+48=3482881÷ 43 =()÷ 434=1÷43=30+373.2×42.3×3.75-12.5×0.423×16=3.2×42.3×3.75-1.25×42.3×1.6=42.3×(3.2×3.75-1.25×1.6)=42.3×(4×0.8×3.75-1.25×4×0.4)=42.3×(4×0.4×2×3.75-1.25×4×0.4)=42.3×(4x0.4x7.5-1.25x4x0.4)=42.3×[4×0.4×(7.5-1.25)]=42.3×[4×0.4×6.25] =42.3×(4×2.5)=4237 1.8+18÷1.5-0.5×0.3 =1.8+12-0.15=13.8-0.15=13.656.5×8+3.5×8-47 =52+28-47=80-47(80-9.8)×5分之2-1.32 =70.2X2/5-1.32=28.08-1.32=26.768×7分之4÷[1÷(3.2-2.95)]=8×4/7÷[1÷0.25]=8×4/7÷4=8/72700×(506-499)÷900 =0 =1 =21 33.02-(148.4-90.85)÷2.5=33.02-57.55÷2.5=33.02-23.02 =10(1÷1-1)÷5.1 =(1-1)÷5.1 =0÷5.1 =018.1+(3-0.299÷0.23)×1=18.1+1.7×1 =18.1+1.7 =19.83.3ab-4ab+8ab-7ab+ab=______. 4.7x-(5x-5y)-y=______. 5.23a3bc2-15ab2c+8abc-24a3bc2-8abc=______. 6.-7x2+6x+13x2-4x-5x2=______. 7.2y+(-2y+5)-(3y+2)=______. 11.(2x2-3xy+4y2)+(x2+2xy-3y2)=______. 12.2a-(3a-2b+2)+(3a-4b-1)=______. 13.-6x2-7x2+15x2-2x2=______. 14.2x-(x+3y)-(-x-y)-(x-y)=______. 16.2x+2y-[3x-2(x-y)]=______. 17.5-(1-x)-1-(x-1)=______. 18.( )+(4xy+7x2-y2)=10x2-xy. 19.(4xy2-2x2y)-( )=x3-2x2y+4xy2+y3. 21.已知A=x3-2x2+x-4,B=2x3-5x+3,计算A+B=______. 22.已知A=x3-2x2+x-4,B=2x3-5x+3,计算A-B=______. 23.若a=-0.2,b=0.5,代数式-(|a2b|-|ab2|)的值为______. 25.一个多项式减去3m4-m3-2m+5得-2m4-3m3-2m2-1,那么这个多项式等于______. 26.-(2x2-y2)-[2y2-(x2+2xy)]=______. 27.若-3a3b2与5ax-1by+2是同类项,则x=______,y=______. 28.(-y+6+3y4-y3)-(2y2-3y3+y4-7)=______. 29.化简代数式4x2-[7x2-5x-3(1-2x+x2)]的结果是______. 30.2a-b2+c-d3=2a+( )-d3=2a-d3-( )=c-( ). 31.3a-(2a-3b)+3(a-2b)-b=______. 32.化简代数式x-[y-2x-(x+y)]等于______. 33.[5a2+( )a-7]+[( )a2-4a+( )]=a2+2a+1. 34.3x-[y-(2x+y)]=______. 35.化简|1-x+y|-|x-y|(其中x&0,y&0)等于______. 36.已知x≤y,x+y-|x-y|=______. 37.已知x&0,y&0,化简|x+y|-|5-x-y|=______. 38.4a2n-an-(3an-2a2n)=______. 39.若一个多项式加上-3x2y+2x2-3xy-4得 2x2y+3xy2-x2+2xy, 则这个多项式为______. 40.-5xm-xm-(-7xm)+(-3xm)=______. 41.当a=-1,b=-2时, [a-(b-c)]-[-b-(-c-a)]=______. 43.当a=-1,b=1,c=-1时, -[b-2(-5a)]-(-3b+5c)=______. 44.-2(3x+z)-(-6x)+(-5y+3z)=______. 45.-5an-an+1-(-7an+1)+(-3an)=______. 46.3a-(2a-4b-6c)+3(-2c+2b)=______. 48.9a2+[7a2-2a-(-a2+3a)]=______. 50.当2y-x=5时,5(x-2y)2-3(-x+2y)-100=______.
提问者评价
1) (-9)-(-13)+(-20)+(-2)
3+13-(-7)/6 (3)
(-2)-8-14-13 (4)
(-7)*(-1)/7+8 (5)
(-11)*4-(-18)/18 (6)
4+(-11)-1/(-3) (7)
(-17)-6-16/(-18) (8)
5/7+(-1)-(-8) (9)
(-1)*(-1)+15+1 (10)
3-(-5)*3/(-15) (11)
6*(-14)-(-14)+([|-98|+76+(-87)]-23[56+(-75)-(7)]-(8+4+3) -(-89)+|-87|-23+[-75-(7)+76]-(10+39-24)
|-9.8|+(-4.6)-[8.7-...
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六年级数学简便计算
4-14&#471.423×125 2;63-2&#47.
423×9/35-2&#4常穿管堆攮瞪锦论7;3-2/5×0;15-2&#47.
20-2/25×15&#47
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36 + 1&#47. 31 × 5/3.4×125×25×0.2×5= 6-1.(58+37)÷(64-9×5) 42.875-7. 4&#47.6×(3;9 × 15&#47.5)÷1.5)2×0 4;7 × 21&#47.9×1;6 24;9×3/25 + 3/12×4/3 + 1/11 23) 1. 7&#47.4 0.5 43.25+50×1.87-0. 7 × 5&#47. 1;19 + 12&#47.55)÷8.74 50.92 2;9 + 3&#47.4&#47. 8/4×4&#47.85+14×(14+208÷26) 39;2 + 4&#47. 123&#47.2×4)= 0.9)+0;7 – 5/4 × 9&#47. 101 × 1/14 12.1+(3-0.423×161;3 17;7 17;36 + 1/5+3&#47.8+18÷1. 3/3 26;3 × 3&#47.52-(6+9;4 × 9&#47、 5/8÷0.8 1;4 + 1&#47.8 44.(6.2)&#47. 3 × 2/14 ×× 2&#47.728/6 – 5/32 – 3&#47.52-(6+9;16 + 2/2 25.75+0;16 + 1&#47.6÷4= 5;9 ×3 3× 5&#47.4÷[2.4-90;4 13.8 4;5 – 1&#47. 14 × 8&#47.14)*.9+0.02-(148.35×3.5 12;7 22.87-0;4×5&#47.5×(4;4 18.2×3;4-3&#47.7-2.178-145÷5×6+42 420+580-64×21÷28 37.23)×1除1;27 3;(4.375)=14. 12× 5&#47.19×3-0.4-(2.8&#47.25×4)=6;36 + 1&#47.32.25)8×7×1;7*5&#47.(6.120-144÷18+35 33. 5&#47.0.8×46+4.347+45×2-4160÷52 19.2×4)= 0.32;9 7;7 × 49&#47. 1&#47.8×2;9 ) 8 × 5/[2;5+5&#47.19×3-0. 3/5 + 8 × 11&#47.4÷[2;22 + 1&#47.78 (+681+6)×12 3××6×854 5;5-1/9 - 4/1&#47.74 10;3+1/2) ÷(60÷11&#47.6÷4= 5. 1/8 + ( 1/3 + 1/7 17;7 × 5&#47.5×8-47 (80-9:18 0.728÷3.6.5+2.12×4.55)÷8.5 43.2×1.85-5.10.5.3×3. 8/9 - 1/25 + 3/9 - 4/7 - ( 2/5 × 21 31.74 50. 1100÷(3&#47.2×(1.94+34.9-(6;24 22) 1.72 0;7 - ( 2&#47.68×1;9 ) 9;2 -( 3&#47.37= 46;2+2&#47.[(7;2 + 2&#47.65×99+1.120-36×4÷18+35 41;3 ) 13;5 × 2/16) ×32=17.13)+4;7÷2/3 21;2 + 4/3 × 15 27.8-6.5;4 5.32 8×7分之4÷[1÷(3;2 25.38+7;7 5 × 25&#47. 9/5 + 4/常穿管堆攮瞪锦论9÷80%=12;7*5/5 + 8 × 11/7 22;8-3/6 – 2/3 × 15 27;6 10.9 8.9×6;4 + 1&#47. (0;9 - 1&#47.15-10.6 45.325-62&#47.8×0.12× 4;4 × 8&#47.5×(4.2×3;3 × 3/9 - 4/4+1&#47.4 28×12. 4&#47.04*(1 2&#47.2÷0.875-0.25×8;9 ) 9.6+0.95)]2700×(506-499)÷900 33.68×1;3 × 11&#47.125×8) ÷(0.2×8 7.812-700÷(9+31×11) (136+64)×(65-345÷23) 38;27 10;5 14;15 21) 7/9 ×3 4;4 × 8/5 × 21 回答人的补充
21;14 1;8 ÷6 6;26-2/7 – 5&#47.8×2.6-1;7 × 5/2+1&#47.12× 4.33;49 + 3/6 1/3 + 1/5 ) 8.8÷0;27 3;49 + 3&#47.6 (2)3;3 + 1&#47.2)*2;9 - 1&#47. 7&#47.4÷[2;7 × 49/9 + 3&#47.[(5. 8 × 4/7 22.1+0.9 48.78+8;8÷5&#47.75×0;5 × 25&#47.8-1;9×3&#47.4-5. 45 × 2&#47.2×42.25×0.9-0. 9. 9&#47.3×3;6 + 5/4 4 × 8&#47.4+0.25)=11;32 – 3&#47. 8 × 4&#47.38+7;9 7;2 9;40 *(58+370)&#47.(284+16)*(512-× 4.125) ×200%=10.8-1;7 × 3&#47. 6÷ 3/6 24;7 – 10/2 -( 3/9 × 15&#47.2-2.5×8+3.1+(3-0;8 – 3/14 12;3 21;16 + 1/21 ) 16.8-6.2)-6 (4)12×6÷7;8)=24.6×(3.46+0;2÷4&#47.9+0;5 × 21 31;5 ) 8;9 × 18 – 14 × 2&#47. 1&#47.38/5 2;6 15;4 5.50+160÷40 (58+370)÷(64-45) 32.43= 7;6 × 12/6 24;19 × 5&#47. (1-1/8 ÷6 95/3 26;4 × 8&#47.8×(3.6×4 6;4 × 8/3)×60%=21;8 8;9 ×3 4.025+0.8 26) 9;5 × 2&#47.2-6 15;24 20.43= 47;5+3/7 × 3&#47.87-0.5 51.(3;3 + 1&#47.5%+(3/3 11;12)=5;9 - 1&#47. 800×12. 3&#47.2×1.1-5;9*[15/6 23、 1&#47.32×1;3 + 5&#47.5;7 × 21&#47.5×2.5)÷1;32 – 3&#47.8+0.87-0;9 + 3/7 – 5&#47.5%) 15. 15÷(3&#47. 9/9 ) 9.6-1;3+3/6 15.9%
20;9 ×3 4;3 ) 2/9 × 4/0. (9/19 × 5&#47. 9&#47.3-6.120-144÷18+35 33;4 × 8&#47.6×8×2;5 12;9+1/21 ) 19 × 18 – 14 × 2/5 + 8 × 11&#47.1 × 5/2-1/2+1&#47.24)(27) 6. 3&#47. 3 × 2&#47.75×0;8 + 1&#47. 7&#47.75×0.5+2.21*42-(4.5+6.5+2. 1&#47. (60×1/7-[(7-0.60625 1;6 + 5&#47.2-67/9-3/16 + 1&#47. 5&#47.[5 1&#47. 45 × 2&#47.8×0.7-2.75-12.299÷0;49 + 3&#47.2÷0;4×5/3 × 3/3÷1&#47. 7 × 5&#47、 10÷5/11 ÷ 1&#47.4+6;5×3&#47. 101 × 1&#47.15]*0. 5&#47.4×0. (1&#47. 7/23÷9&#47.6 (2)3. 3/4 × 9&#47.85-5;4=22;8 + 1&#47.2)×2.4×0.38+7.[(7. (78-65) ÷(1÷39)=9;3 29;2 30. 7 × 5&#47.3×6.[(7.43= 47.2×5= 6-1.52-(6+9.8×6;3 11. 8/4 ÷ 2/4=8.1-5.6×(3.4) 48×1.2)-6 (4)12×6÷7;24 20.6 5、 2-6&#47.7.(6;2;6 23.120-36×4÷18+35 41;9 - 1&#47.24+0.12×4;21 ) 16.62] 53.8×9.2)×2. 6÷ 3/8+1&#47.8-6.1-5;6 28.6+0.23)×1 2;24 20.65 27.62] 5.5+2;3 2;8 ÷6 6;8 – 3&#47.5. (0;6 28. 101 × 1/6 15.1 18.7 1.5×0. 5/3 + 5&#47. 14 × 8&#47.728÷3.6÷4= 5.45&#47.45+6.9-1. 9&#47.15] ÷2.5 0. 4&#47.8×0.5-12;3 ) 13.5-44+10. 4&#47.5 6.85)÷2;3&#47. 45 × 2/10+2/3÷5&#47.32×1;7 × 5&#47. 3/7 - ( 2&#47. 5&#47.37 20.19×3-0.5;3 11;5 × 25&#47.76
14.5 52.6×(3.5×0;6 × 12/7 – 10&#47.15] ÷2.728÷3;6 + 5/16 + 2/3 2.5)÷1.2×2. 3&#47.4-90. 7&#47. (9;2 + 2&#47.5%-1&#47.95÷(64-45) 36.5;2 + 4&#47. 8&#47.15]&#47.5)÷1.3 6. 4/32 – 3&#47.5)*1&#47.62] 13.7.6-1.2×3.7 8;7 × 5&#47.5-12.9 48;9 + 1&#47.5.5×0;22 + 1&#47.84-3;3 29.99%+12. 5&#47.2÷0.299÷0;6 4&#47. 1&#47. 9 × 5/3 2.9)+0.9-1;8)=16.52-(6+9.2×4)= 0.6)×0. (0;18) 4;16 + 2/4 18:17 1.6.65) (4+0. 17/2 + 4/6 – 2/2×2&#47.68×1.178-145÷5×6+42 420+580-64×21÷28 37;7 × 49/3÷(8/14 12.5+8;2 30;5 × 25&#47. 17&#47.(3;6 10;4 + 3&#47.32×1;27÷1/9 7.8-1;15 19.0025) ×4=23.8÷0.(0;2 30.6-1.5 24) 8.125&#47.6)*0.02-(148;2;8)-65 ] 16.5×9.13)+4.(3;12.8) 1.2)-6 14.76 933-157-43
32×125×25 9048÷262881÷ 433.62] 回答人的补充
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出门在外也不愁初一数学计算题
初一数学计算题 20
尽量270道以上。
补充:代数,方程,有理数。都OK。
不区分大小写匿名
直接去买“题典”算了!270道谁跟你输啊
(一)
1) 66x+17y=3967 25x+y=1200 答案:x=48 y=47 (2) 18x+23y=2303 74x-y=1998 答案:x=27 y=79 (3) 44x+90y=7796 44x+y=3476 答案:x=79 y=48 (4) 76x-66y=4082 30x-y=2940 答案:x=98 y=51 (5) 67x+54y=8546 71x-y=5680 答案:x=80 y=59 (6) 42x-95y=-1410 21x-y=1575 答案:x=75 y=48 (7) 47x-40y=853 34x-y=2006 答案:x=59 y=48 (8) 19x-32y=-1786 75x+y=4950 答案:x=66 y=95 (9) 97x+24y=7202 58x-y=2900 答案:x=50 y=98 (10) 42x+85y=6362 63x-y=1638 答案:x=26 y=62 (11) 85x-92y=-2518 27x-y=486 答案:x=18 y=44 (12) 79x+40y=2419 56x-y=1176 答案:x=21 y=19 (13) 80x-87y=2156 22x-y=880 答案:x=40 y=12 (14) 32x+62y=5134 57x+y=2850 答案:x=50 y=57 (15) 83x-49y=82 59x+y=2183 答案:x=37 y=61 (16) 91x+70y=5845 95x-y=4275 答案:x=45 y=25 (17) 29x+44y=5281 88x-y=3608 答案:x=41 y=93 (18) 25x-95y=-4355 40x-y=2000 答案:x=50 y=59 (19) 54x+68y=3284 78x+y=1404 答案:x=18 y=34 (20) 70x+13y=3520 52x+y=2132 答案:x=41 y=50 (21) 48x-54y=-3186 24x+y=1080 答案:x=45 y=99 (22) 36x+77y=7619 47x-y=799 答案:x=17 y=91 (23) 13x-42y=-2717 31x-y=1333 答案:x=43 y=78 (24) 28x+28y=3332 52x-y=4628 答案:x=89 y=30 (25) 62x-98y=-2564 46x-y=2024 答案:x=44 y=54 (26) 79x-76y=-4388 26x-y=832 答案:x=32 y=91 (27) 63x-40y=-821 42x-y=546 答案:x=13 y=41 (28) 69x-96y=-1209 42x+y=3822 答案:x=91 y=78 (29) 85x+67y=7338 11x+y=308 答案:x=28 y=74 (30) 78x+74y=12928 14x+y=1218 答案:x=87 y=83 (31) 39x+42y=5331 59x-y=5841 答案:x=99 y=35 (32) 29x+18y=1916 58x+y=2320 答案:x=40 y=42 (33) 40x+31y=6043 45x-y=3555 答案:x=79 y=93 (34) 47x+50y=8598 45x+y=3780 答案:x=84 y=93 (35) 45x-30y=-1455 29x-y=725 答案:x=25 y=86 (36) 11x-43y=-1361 47x+y=799 答案:x=17 y=36 (37) 33x+59y=3254 94x+y=1034 答案:x=11 y=49 (38) 89x-74y=-2735 68x+y=1020 答案:x=15 y=55 (39) 94x+71y=7517 78x+y=3822 答案:x=49 y=41 (40) 28x-62y=-4934 46x+y=552 答案:x=12 y=85 (41) 75x+43y=8472 17x-y=1394 答案:x=82 y=54 (42) 41x-38y=-1180 29x+y=1450 答案:x=50 y=85 (43) 22x-59y=824 63x+y=4725 答案:x=75 y=14 (44) 95x-56y=-401 90x+y=1530 答案:x=17 y=36 (45) 93x-52y=-852 29x+y=464 答案:x=16 y=45 (46) 93x+12y=8823 54x+y=4914 答案:x=91 y=30 (47) 21x-63y=84 20x+y=1880 答案:x=94 y=30 (48) 48x+93y=9756 38x-y=950 答案:x=25 y=92 (49) 99x-67y=4011 75x-y=5475 答案:x=73 y=48 (50) 83x+64y=9291 90x-y=3690 答案:x=41 y=92 3X+18=52 x=34/3 4Y+11=22 y=11/4 3X*9=5 x=5/27 8Z/6=48 z=36 3X+7=59 x=52/3 4Y-69=81 y=75/4 8X*6=5 x=5/48 7Z/9=4 y=63/7 15X+8-5X=54 x=4.6 5Y*5=27 y=27/40 8x+2=10 x=1 x*8=88 x=11 y-90=1 y=91 2x-98=2 x=50 6x*6=12 x=1/3 5-6=5x x=-1/5 6*x=42 x=7 55-y=33 y=22 11*3x=60 x=20/11 8-y=2 y=-6 1.x+2=3 2.x+32=33 3.x+6=18 4.4+x=47 5.19-x=8 6.98-x=13 7.66-x=10 8.5x=10 9.3x=27 10.7x=7 11.8x=8 12.9x=9 13.10x=100 14.66x=660 15.7x=49 16.2x=4 17.3x=9 18.4x=16 19.5x=25 20.6x=36 21.8x=64 22.9x=81 23.10x=100 24.11x=121 25.12x=144 26.13x=169 27.14x=196 28.15x=225 29.16x=256 30.17x=289 31.18x=324 32.19x=361 33.20x=400 31.21x=441 32.22x=484 33.111x=12321 34.1 35.1321 36. 37.46/x=23 38.64/x=8 39.99/x=11 40.x=0 41.2x+1= -2+x 42.4x-3(20-x)=3 43..-2(x-1)=4 44.3X+189=521 45.4Y+119=22 5 46.3X+77=59 47.4Y-6985=81 48.X=0.1 49.5X=55.5 50.Y=50-85 (二)2x+17=35 3x-64=11 12+8x=52 0.8x-4.2=2.2 2x+5=10 3x-15=75 4x+4o=320 3x+77=122 5x-1.6=0.6 6x-4=20 10x-0.6=2.4 500-12x=140 (-8)-(-1) =-7 45+(-30) =15 -1.5-(-11.5) =10 -0.25-(-0.5) =0.25 15-【1-(-20-4)】 =-10 -40-28-(-19)+(-24) =-73 22.54+(-4.4)+(-12.54)+4.4 =10 (2/3{三分只二 “/”是分数线}-1/2)-(1/3-5/6)=2/3 2.4-(-3/5)+(-3.1)+4/5 =0.7 (-6/13)+(-7/13)-(-2) =1 3/4-(-11/6)+(-7/3) =1/4 11+(-22)-3×(-11) =22 (-0.1)÷0.5×(-100) =20 (-2)的3次方-9 =-17 23÷[-9-(-4)] =-23/5 (3/4-7/8)÷(-7/8) =1/7 (-60)×(3/4+5/6)=-95 [-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3) 5+21*8/2-6-59 68/21-8-11*8+61 -2/9-7/9-56 4.6-(-3/4+1.6-4-3/4) 1/2+3+5/6-7/12 [2/3-4-1/4*(-0.4)]/1/3+2 22+(-4)+(-2)+4*3 -2*8-8*1/2+8/1/8 (2/3+1/2)/(-1/12)*(-12) (-28)/(-6+4)+(-1) 2/(-2)+0/7-(-8)*(-2) (1/4-5/6+1/3+2/3)/1/2 18-6/(-3)*(-2) (5+3/8*8/30/(-2)-3 (-84)/2*(-3)/(-6) 1/2*(-4/15)/2/3 -1+2-3+4-5+6-7 -50-28+(-24)-(-22) -19.8-(-20.3)-(+20.2)-10.8 0.25- +(-1 )-(+3 ) -1-〔1-(1-0.6÷3)〕×〔2-(-3)×(-4)〕 0÷(-4)-42-(-8)÷(-1)3 -32-(-3) 2-(-3)3+(-1)6 3×(-2)2+(-2×3)2+(-2+3)2 (-12)÷4×(-6)÷2 (-12)÷4×(-6)×2 75÷〔138÷(100-54)〕 85×(95-1440÷24) 80400-(÷15) 240×78÷(154-115) ×563 〔75-(12+18)〕÷15 2160÷〔(83-79)×18〕 280+840÷24×5 325÷13×(266-250) 85×(95-1440÷24) 58870÷(105+20×2) ×563 81432÷(13×52+78) [37.85-(7.85+6.4)] ×30 156×[(17.7-7.2)÷3] (947-599)+76×64 36×(913-276÷23) -(3.4 1.25×2.4) 0.8×〔15.5-(3.21 5.79)〕 (31.8 3.2×4)÷5 194-64.8÷1.8×0.9 36.72÷4.25×9.9 3.416÷(0.016×35) 0.8×[(10-6.76)÷1.2] (136+64)×(65-345÷23) (6.8-6.8×0.55)÷8.5 0.12× 4.8÷0.12×4.8 (58+37)÷(64-9×5) 812-700÷(9+31×11) (3.2×1.5+2.5)÷1.6 85+14×(14+208÷26) 120-36×4÷18+35 (284+16)×(512-8208÷18) 9.72×1.6-18.305÷7 4/7÷[1/3×(3/5-3/10)] (4/5+1/4)÷7/3+7/10 12.78-0÷( 13.4+156.6 ) 37.812-700÷(9+31×11) (136+64)×(65-345÷23) 3.2×(1.5+2.5)÷1.6 85+14×(14+208÷26) (58+37)÷(64-9×5) (6.8-6.8×0.55)÷8.5 (284+16)×(512-8208÷18) 0.12× 4.8÷0.12×4.8 (3.2×1.5+2.5)÷1.6 120-36×4÷18+35 10.15-10.75×0.4-5.7 5.8×(3.87-0.13) +4.2×3.74 347+45×2-4160÷52 32.52-(6+9.728÷3.2)×2.5 87(58+37)÷(64-9×5) [(7.1-5.6)×0.9-1.15] ÷2.5 (3.2×1.5+2.5)÷1.6 5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-6 3.2×6+(1.5+2.5)÷1.6 (3.2×1.5+2.5)÷1.6 5.8×(3.87-0.13)+4.2×3.74 33.02-(148.4-90.85)÷2.5 (1)3.28-4.76+1 - ; (2)2.75-2 -3 +1 ; (3)42÷(-1 )-1 ÷(-0.125); (4)(-48) ÷82-(-25) ÷(-6)2; (5)- +( )×(-2.4). (1)-23÷1 ×(-1 )2÷(1 )2; (2)-14-(2-0.5)× ×[( )2-( )3]; (3)-1 ×[1-3×(- )2]-( )2×(-2)3÷(- )3 (4)(0.12+0.32) ÷ [-22+(-3)2-3 × ]; (5)-6.24×32+31.2×(-2)3+(-0.51) ×624.
1.(1+1/2)(1+1/3)(1+1/4)......(1+1/100)&2.(1-1/2)(1-1/3)(1-1/4)......(1-1/100)&3.8+2-8+2&4.25*4/25*4&5.7.26-(5.26-1.5)&6.286+198&7.314-202&8.526+301&9.223-99&10.6.25+3.85-2.125+3.875&11.9-2456*21&12.0.5/11.5-4*2.75&13.1/2×3/5&14.3.375+5.75+2.25+6.625&15.÷18&16.3.8×5.25+14.5&17.2.1*4.3+5.7*2.1&18.30×1/3&19.102*45-328&20.2/3×12&21.2.8*3.1+17.6/8&22.3/5×5/6&23.(50-12.5)/2.5&24.2/5×1/3&25.&26.1/2-1/6&27.3.5*2.7-52.2/18&28.1/7×1/5&29.3.375*0.97+0.97*6.625&30.25×4/5&31.6.54+2.4+3.46+0.6&32.5/6-1/2&33.95.6*1.8+95.6*8.2&34.1/2×1/5&35.600-420/12&36.344/3.6-5.4*0.25&37.16/2+30/2+90/6&38..&39.&40.0.15/0.25+0.75*1.2&(1)2x+8=16&(2)x/5=10&(3)x+7x=8&(4)9x-3x=6&(5)6x-8=4&(6)5x+x=9&(7)x-8=6x&(8)4/5x=20&(9)2x-6=12&(10)7x+7=14&(11)6x-6=0&(12)5x+6=11&(13)2x-8=10&(14)1/2x-8=4&(15)x-5/6=7&(16)3x+7=28&(17)3x-7=26&(18)9x-x=16&(19)24x+x=50&(20)6/7x-8=4&(30)3x-8=30&(31)6x+6=12&(32)3x-3=1&(33)5x-3x=4&(34)2x+16=19&(35)5x+8=19&(36)14-6x=8&(37)15+6x=27&(38)5-8x=4&(39)7x+8=15&(40)9-2x=1&(41)4+5x=9&(42)10-x=8&(43)8x+9=17&(44)9+6x=14&(45)x+9x=4+7&(46)2x+9=17&(47)8-4x=6&(48)6x-7=12&(49)7x-9=8&(50)x-56=1&(51)8-7x=1&(52)x-30=12&(53)6x-21=21&(54)6x-3=6&(55)9x=18&(56)4x-18=13&(57)5x+9=11&(58)6-2x=11&(59)x+4+8=23&(60)7x-12=8&(61)X-5.7=2.15&(62)15 5X-2X=18&(62)3X 0.7=5&(63)3.5×2= 4.2 x&(64)26×1.5= 2x&(65)0.5×16―16×0.2=4x&(66)9.25-X=0.403&(67)16.9÷X=0. 3&(68)X÷0.5=2.6&(69)x+13=33&(70)3 - 5x=80&(71)1.8- 6x=54&(72)6.7x -60.3=6.7&(73)9 +4x =40&(74)0.2x-0.4+0.5=3.7&(75)9.4x-0.4x=16.2&(76)12 -4x=20&(77)1/3 x+5/6 x=1.4&(78)12 x+34 x=1&(79)18x-14 x= 12&(80)23 x-5×14 = 14&(81)12 +34 x=56&(82)22-14 x= 12&(83)23 x-14 x= 14&(84)x+14 x= 65&(85)23 x=14 x +14&(86)30 x-12 x -14 x=120.4×125×25×0.8&=(0.4×25)×(125×0.8)=10×100=1000&1.25×(8+10)&=1.25×8+1.25×10=10+12.5=22.5&9123-(123+8.8)&=.8==8991.2&1.24×8.3+8.3×1.76&=8.3×(1.24+1.76)=8.3×3=24.9&&=9999×(1000+1)=+9999×1&=&14.8×6.3-6.3×6.5+8.3×3.7&=(14.8-6.5)×6.3+8.3×3.7=8.3×6.3+8.3×3.7&8.3×(6.3+3.7)&=8.3×10&=83&1.24+0.78+8.76&=(1.24+8.76)+0.78&=10+0.78&=10.78&933-157-43&=933-(157+43)=933-200=733&&==3823&I32×125×25&=4×8×125×25&=(4×25)×(8×125)=100×1000&=100000&=(00+1248)÷26=0÷26+8÷269&=100+100+100+48=3482881÷ 43&=()÷ 434=1÷43=30+373.2×42.3×3.75-12.5×0.423×16=3.2×42.3×3.75-1.25×42.3×1.6=42.3×(3.2×3.75-1.25×1.6)=42.3×(4×0.8×3.75-1.25×4×0.4)=42.3×(4×0.4×2×3.75-1.25×4×0.4)=42.3×(4x0.4x7.5-1.25x4x0.4)=42.3×[4×0.4×(7.5-1.25)]=42.3×[4×0.4×6.25]&=42.3×(4×2.5)=4237&1.8+18÷1.5-0.5×0.3&=1.8+12-0.15=13.8-0.15=13.656.5×8+3.5×8-47&=52+28-47=80-47(80-9.8)×5分之2-1.32&=70.2X2/5-1.32=28.08-1.32=26.768×7分之4÷[1÷(3.2-2.95)]=8×4/7÷[1÷0.25]=8×4/7÷4=8/72700×(506-499)÷900&=0&=1&=21&33.02-(148.4-90.85)÷2.5=33.02-57.55÷2.5=33.02-23.02&=10(1÷1-1)÷5.1&=(1-1)÷5.1&=0÷5.1&=018.1+(3-0.299÷0.23)×1=18.1+1.7×1&=18.1+1.7&=19.8
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