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六年级(上册)分数解方程练习试题.doc

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六年级(上册)分数解方程练习试题.doc
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.. .六年级分数解方程练习题25% + 10x = x - 15%x = 6854x+ x=121 5x-3× = x÷ =1283215732416x+5 =13.4 3x=8341X83x÷ = x+ x= 4x-6× =27216874332÷x= x = x = × 125310 57298615x÷ = × 4x- 3 ×9 = 29 x + x = 4356421216.. .x-21× =4 10322041x8)6.2(x6x+5 =13.4 x- x= 4χ-6 =3825133105x= x= x÷ =1952185454281x÷ =12 x= x= ×3241537298615x÷ = ÷ x-0.25= =30% 35642141X4+0.7x=102 x+ x=42 x+ x=10532141x- x=400 x-0.125x=8 = 83 X364.. .x+ x=18 x×( + )= x-0.375x= 3716381312 65x× + =4× x- 73x=12 5 x-2.4×5=832180.36×5- x = (x- 4.5) = 7 x- 25%x = 1034352312x- 0.8x = 16+6 20 x– 8.5= 1.5 x- x -4= 21 45x+ 25%x=90 x- x= 解:(1 )(12×3/4+12×2/3)x =8/33789(9+8 ) x=8/317x=8/3x=8/3÷17x=8/51( 2)7x/15 =3/4×4/15×9/177x/15=9/85x=9/85÷7/15.. .x=27/119(3)( 15×1/3+15×2/5)x =20 (5+6 ) x=2011x=20x=20÷11x=20/11(4) 2x-3x/7=611x/7=6x=6÷11/7360÷[(12+6)×5] 288÷[(26-14)×8] 500×6-(50×2-80) (105×12-635)÷25 864÷[(27-23)×12] (45+38 -16)×24 500-(240 +38×6) [64-(87-42)] ×15 (845-15×3)÷1612×[(49 -28)÷7] 450÷[(84-48] )÷12 (58+37 )÷(64-9×5) 95÷(64-45) 178-145÷5×6+42 .. .812-700÷(9+31×11) 85+14×(14+208÷26) (284+16)×(512-8208÷18) 120-36×4÷18+35 (58+37 )÷(64-9×5) (6.8-6.8×0.55)÷8.5 0.12× 4.8÷0.12×4.8 (3.2×1.5+2.5)÷1.6 6-1.6÷4= 5.38+7.85-5.37= 7.2÷0.8-1.2×5= 6-1.19×3-0.43= 6.5×(4.8-1.2×4)= 5.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5 [( 7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9 )+0.62] 12×6÷(12-7.2)-6 12×6÷7.2-6 0.68×1.9+0.32×1.9 (58+370)÷(64-45) 420+580-64×21÷28 (136+64)×(65-345÷23) 48.10.15-10.75×0.4-5.7 .. .388+(5000-1000) 158+262+138 375+219+381+225 5001-247-1021-232 (181+2564)+2719 378+44+114+242+222 276+228+353+219 (375+1034)+(966+125) (2130+783+270)+1017 99+999+9999+99999 7755-(2187+755) 2214+638+286 3065-738-1065 899+344 2357-183-317-357 2365-1086-214 497-299 2370+1995 3999+498 1883-398 12×25 75×24 .. .138×25×4
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