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    六年级数学计算题(含简便)、解方程专项训练.doc

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    六年级数学计算题(含简便)、解方程专项训练.doc

    递等式计算(能简算的要简算)×4 ×8 ×18 ×20 × × × 60× ×× ×6×6 ()×27 × ××50 × ×× × ×4 ×8 ×18 ×20 × × × × × 60× ×× ×6×6 ()×27 × ××50 ×× × ×12 × 30× 9× × ×50 6× × 17× ()×32 ×× × ×× () ×(×)××16 × 4472× +× ×+× 0.25×7.89×0.4 32×12.5×2.5 3.6×7.2+3.6×2.8 ×+× 24×(+) (+)×40 75× 63× 98× 88 × ×23+ 82× ×48+ +21× (+)×24 ×36+×24 ()×60 ( ×)×16×9 ×××+ 36×(+) ×+× 57× ×26+ ×15+×20 24×49×( ×) ()×60 ×4 ×8 ×18 ×20 × × × × ×× × ×6×6 ()×27× 60× ××50 ×××4 ×8 ×18 ×20 × × × × ×× × ×6×6 ()×27× 60× ××50 ××30× × ×12 × 9× × ×50 6× 17× × ()×32 ××××16 × 4472× × ×21 56× × ×× 7× × 5 ×3×××17 ×+× ×37×17 ×1036 ×(+) × × × ×100 13× × ×× ×5 × 2×12 ×2× 3 9 × 3×22 × 45× 1×21 ××× × ×12 24×49×( ×)3.6× 27× × +× 1×8 1×3 ×12 ×(×)×5 ×1.6 ×15 ×+× 72× × × × 75× 63× ×24 48×× 28× 8×0.875 × × 150× 3.25× ×× × 2× ×120 ()×5 1×18 15× 32×12.5×2.5 ×24 × + 3.6×7.2+3.6×2.8 108× 1× ×11 0.25×7.89×0.4 × × × ×+× ×7 ×1 × 24×(+)42× × ×34 (+)×40 × 4 42× +21× 35× ×2 4.5 × ×48+÷ ÷ ÷ ×××17 ÷ ÷ ÷ 82×÷3 ÷2 ÷3 ()×60÷6 ÷2 ÷4 ×+×6÷ 4÷ 5÷ ×37×17 ÷ ÷ ÷ (+)×24 ÷ ÷ ÷ ×÷× ÷7 ÷2 ÷4 36 ×(+) 3÷ 7÷ 36÷ × ÷ ÷ ÷ ÷5 ÷6 ÷10 ××6÷ 7÷ 6÷ 10(1)÷ ÷ ÷ ÷ ×× ÷12 ÷2 ÷15 1× 0.498× 88 × ×23+ 36×(+)÷ ÷ ÷ ×0.8÷0.8 ×36+×24 ÷11 ÷3 ÷5 8÷ 4÷ 24÷ ()×60 ÷4 ÷4 ÷9 ( ×)×16×9÷8 ÷5 ÷1 (0.4)÷(0.5)12÷ 9÷ 2÷ ××1-× ×() 1÷1÷ 0×1× ()÷ ÷×0.32 62.4÷ ×4÷×4 ÷ ÷ ÷ × 6÷÷6 ×÷() ()÷ ( + )÷ ×÷ (5÷)× (0.75)÷÷0.4× 11÷0.25÷(1) ÷× ×() 36÷ =30×× 14×÷14× 36×( ) (+)×9+ ×3.25.6×0.51.2×50% 8= 65×4.4=40 2( )× 1.8× -x=×45 ÷×() ÷1 += -=14 7-=2 -= 5 += 5 2÷÷ 1÷7 36÷(-)×3 9 -÷ ÷5÷2 ×()÷ ×+÷ -= 12= =× ÷=15÷6÷21 ÷× ×× ×÷÷× ×14× +÷+ (-×9)÷(+)÷(1-) ×÷ 1()÷ 36×() (3.2) 1 2-3.25=0.75 (1)÷ 5 12=1 ÷7× 1÷ ÷ (1) =3.6 0.2-2.6×5=8 ()÷ +1.5 5÷ 0.92 ÷ ÷ ×× ÷0.8÷XX121 5X3× X÷12 6X5 =13.4 X X= 2X + = 3X= X÷= XX= 4X6×=2 ÷X= X = X = ×× 8÷ ÷ 1÷ 463 5X= X= X=5.48+8.73+4.52+0.27 (6.3-6.3×0.9)÷6.3X÷ =× 4x3 ×9 = 29 x + x = X21×=4 (1514×)× ÷(+ )××× +2.4=6 1.8=2.4 6×31.8=7.2 175=2.4+3 = 12.6×2=8 (4.8-1.6+)× 18×0.25+ 6.38×0.37+0.37×3.62(1×)÷ ÷×7 (+) ×= +0.5=4 413=314.5+8=27 2+4.3×3=14 ×(1)× 15×+15× 25÷() (+)×9+30×(+) +×+ + ()÷(+) 3÷42.5 316×3102 47.112.5 0.329.1 x 3+2 13189.247.112.5 = + ×÷(+) ()×70 ÷9+× 12÷(1) (1×)÷ (1)×÷497× ×8+×2 (+)×722.40.45×2=0.3 6.35=4.1 ×2.5=0.6 = +1.2=3.4 X×(+)= + = 2 = 31.4×2=1.1 += 5.53 = 1.75 + = 72×(+) 12×(+) 4÷ 48×(+) 5 (+)×6027 = 40 ÷ = = + = 18 = 15× ×(+)= ÷×7 ××(9+ 24×(+) ÷+× +÷+ 2× 30×(+) +÷+ ×2003 10÷1024÷12 ×5.2×1÷ X = 15× X×(1+)= 25(1)X = X×× = 10 X× = 8× X× = ×(1+)= 25 (1) = ×× = 10 × = 8×× = 15÷ = 1(+)÷ ×÷3 (1×)÷ (+) 25÷() +×× = 18 × = 24× ×× = 4 74 = 21× = 18× = 10 12÷(1) (1)×÷4 ×÷(+) (1×)÷ 8÷× ×÷×3÷×3 25×7×4 102×7.3÷5.1 34÷4÷1.7 1.25×( 213×0.8) 700÷14÷5 18.6÷2.5÷0.4 1.96÷0.5÷4 12.065.072.94 30.349.7610.34 17+7 1 11+7+3 933-15.7-4.3 73+ 8+224×(-+) (12+) ×7 (7-)× 7+(-)12.065.072.94 30.349.7610.34 ×3÷×3 25×7×4 +x = 20 ×+×45 = 12 6X5 =13.4 X-X=()÷(+) 1(+)÷3.5 (1)×÷4 + X÷= X×=20× X÷=12 X=×()÷ (+)÷(1) ÷3+× +÷X÷=÷ X-0.25= 4+0.7X=102 X+X=42 72×(+) 2÷ +×+ +×+ X+X=105 X-X=400 X-0.125X=8 X+X=18 ×+÷7 4÷ ×(9+) ÷+× X×( + )= x0.375x= x×+=4× XX12+÷+ 2× 30×(+) +÷+0.36×5- x = (x- 4.5) = 7 x- 0.8x = 16+6 20 x 8.5= 1.56× ×+÷5 12×(+) +×+x- x -4= 21 XX= +2.4=6 1.8=2.44÷ 48×(+) ÷9+× 24×(+) 6×31.8=7.2 175=2.4+3 = 12.6×2=8(+)×6027 5 ()×70 97× ×= 413=31 4.5+8=27 2+4.3×3=14×8+×2 15×+15× (+)×72 72×(+)×(1)1 3÷42.5 316×310225×÷× 13.098.124.88 12×1034500÷75 ×÷(×) +X = 2X = 3X1.4×2=1.1 X+=()×15×11 37.519.5÷2.5×4 55×() 10(43)0.75 ÷5 = ÷ = = X 0.6 X =18 525×37×0.4  75×0.39×4   125×39×16 X + 2.5×8=95 X+30=80 4+ = 9 -= 101×99897 X× = 24× X×× = 4 X× = 18× 7X4X = 21 1×35×2 136×4.064.06×64   7.02×123877×7.02  4X+x = 20 ×x+×45 = 12 = ×(+)= 102×5.65.6×2   471×0.250.25×71  43×12686×13X×× = 4 x× ×x+×45 = 12 = (+)=× 8x×3 ×+÷5x3x = 1.75 X+ = 15÷X = X×× = 18 3 ×+× 1(+)÷ ×÷347.112.5 0.329.1 x 3+2(1×)÷ ÷×7 ()÷(+) 1(+)÷3.513189.2 47.112.5 3 ×+× ×+÷ 18×(+)= 2.40.45×2=0.3 6.35=4.1 ×2.5=0.6×7+×5 ()×24 (×+)÷ ÷(+)×= +1.2=3.4 +2.4=6 1.8=2.43 ×+× ()×30 3÷6×31.8=7.2 175=2.4+3 = 12.6×2=8×7+×5 ()×24) (×+)÷ ÷(+)××= +0.5=42 413=31 4.5+8=27(+)×9+ 30×(+) ×(+) ÷5+×2+4.3×3=14 ×(1)1 3÷42.5(1×)÷ ÷×7 (+) ×316×3102 47.112.5 0.329.1 x25÷() + ()÷(+) +3+2 13189.2 47.112.5 ×÷(+) 12÷(1) (1×)÷ (1)×÷4 = 2.40.45×2=0.3 6.35=4.1()×70 97× ×8+×2 15×+15××2.5=0.6 = +1.2=3.4 2X = (+)×72 72×(+) (+)×9+ 30×(+)+X = 3X1.4×2=1.1 X+= 5.5x3x = 1.75 X+ = X = 15× X×(+)= X×(1+)= 2512×(+) +×+ 4÷ 48×(+)(1)X = X×× = X× = 8× X× = ÷9+× 24×(+) (+)×6027 515÷X = X×× = 18 X× = 24× X× = 18××(9+) ÷+× +÷+ 2×X×× = 4 7X4X = 21 X+x = 20 ×x+×45 = 1230×(+) +÷+ 10÷1024÷12 ×5.2×1÷514.5=(5110X)×3 3X2×(10X)=15 (1X)÷3=2X X÷25X÷5=X19555×13111×15 25×0.32×0.25 55×() ×2005 ÷5 = ÷ = = X 60% X =18 10(43)0.75 25×37×0.4  75×0.39×4     X + 2.5×8=95 40%X+30=80 4+ = 9 -= 125×39×16 x×30 6÷x÷ X×× = 4 ×x+×45 = 12101×99897 41×35×2 136×4.064.06×64  = (+)= ×7.02×123877×7.02  102×5.65.6×2    43×12686×13 8x×3 (x6)×25 471×0.250.25×71  41×35×2 136×4.064.06×64     7.02×123877×7.02  X×× = 18 = 10 X×× = 4 X× = 18× 102×5.65.6×2   471×0.250.25×71  43×12686×134:6=15: :=: 3.5: =5:4.2 = = 1.25:5=0.75: :=:6 : =: = ×+÷:0.3: :0.2580: :12 :=12:33 ×+× 1(+)÷ ×÷3:0.6:4 :: : : : :(1×)÷ ÷×7 ()÷(+) 1(+)÷3.5= 1.6: x:1: 25×÷× 13.098.124.88 12×1034500÷75 ×÷(×) +X = 2X = 3X1.4×2=1.1 X+=()×15×11 37.519.5÷2.5×4 125×39×16 5.5x3x = 1.75 X+ = 15÷X = X× = 24× 55×() 10(43)0.75 25×37×0.4    75×0.39×47X4X = 21 X+x = 20 ×x+×45 = 12 101×99897 ÷5 = ÷ = = X 60% X =18514.5=(5110X)×3 3X2×(10X)=15 (1X)÷3=2X X÷25X÷5=X193 ×+× ×+÷ 18×(+) X + 2.5×8=95 40%X+30=80 4+ = 9 -= ×7+×5 ()×24 (×+)÷ ÷(+)×= ×(+)= x×30 6:x:3 ×+× ()×30 3÷X×× = 4 ×x+×45 = 12 = (+)=×7+×5 ()×24) (×+)÷ ÷(+)×× 8x×3 (x6)×25(32×17)÷ (25)÷ (+)×9+ 30×(+)70%X + 20%X = 3.6 25% + 10X = X - 15%X = 68 =30% ×(+) ÷5+× 24×10.5-3549÷39 = 3.5: =5:4.2 = =(-)×21+ ()÷ 0.25×32×12.5 24×x- 25%x = 10 X25%X=90 = +50%=4216× ( 18×( 15.64-+4.36- 1.6: x:1: 47.112.5( 7.5×2.37+25×0.189 60×( ( :0.6:4 :: 0.329.1 20-( 5.17-0.38-1.62 1.25×3.6+1.25×3.4+1.25 35×(1-3.14×5.3+3.14×4.7 83025÷27+935 36.5-6.5×4.72 108÷(x : : : : 3+2 24÷2.4-2.5×0.4 ( 24.5-(7.58+) :12 = 2.5×(1.92÷0.3-5.9) 67.5314-(19.376-2.4686) (1-15÷35)× :0.3: 13189.2 :0.2580: 47.112.5 24-4.8×(2 12×1.43+0.57×12-12 0.99+9.999+99.9 (:=12:3 2.40.45×2=0.3 :=:0.1 6.35=4.1272÷16+204×6 (227÷25-4.68)÷0.11 7.75-2.4+2.25-6.6 1.25:5=0.75: :=:6 ×2.5=0.6 =3.7-0.25×(3-1.6) 98.6-29.3+11.4-30.7 5.3× : =: = +1.2=3.4 4:6=15:2.65×1.7+1.35×1 (12.4×2.5-2)÷19 (1.9-1.9×0.9)×(17.6-17.41) 24×+76÷5 :=: +2.4=6 3.5: =5:4.2 1.8=2.40.625×5.8+ 92÷ 1260÷28+63×52 (= 6×31.8=7.2 175=2.4+3 = ( 5÷3-7×( 3.7×99+3.7 +50%=42 413=31 4.5+8=27 2+4.3×3=140.5×10.6÷(4.5+) 15.2×96+15.2×5-15.2 82× = 12.6×2=8 = ×=121×84×× 1.37×128-28×1.37 +1.7+5.3 0.4×71+×28+40%2 = 31.4×2=1.1 += + = ×515÷ ÷× 15.814.2 ×997.4(x2.1)=6 (7x - 4)+3(x - 2)= 2x +6 12x8x1228 3(2x1)10=37×÷ ×69 74.835.2 20%×3.86.2×20%20% 3x+ 7x +10 = 90 3(x - 12)+ 23 = 357 7x82x27 5x 18 = 32x28×() ×÷ ×× 5.85××5.85 X5 0.7(x0.9)=42 1.3x2.4×3=12.4 x(30.5)=12 7.6-3.25-3.6 0.125×5.6÷0.7 ×× ××5×3-x÷2=8  4(x-5.6)=1.6  150×2+3x=690  xx1.4 ()× ×99%1%× ()×48 10-7÷9-×230÷x+25=85  1.4×8-2x=6   6x-12.8×3=0.06  7(6.5+x)=87.50.875+×50.875×0.02 ()÷ ÷×45 0.8×2.7×5÷0.9 x-0.7x=3.6  91÷x=1.3  7(x-2)=2x+3  18(x-2)=270×150.125×312.5%×4 3.8×0.70.7×6.2 ×÷ ()÷3200=450+5X+X  X-0.8X=6  7.5*2X=15  x+5.6=9.4 0.3×10130% 0.25×0.375×4×8 18.5×18.518.5× 49×(0.5+x)+x=9.8÷2  2(X+X+0.5)=9.8  2500

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