Toán Lớp 6: a,4^8:4^5-(1^30+17):3^2 b,4.5^2-3.2^3 c,150-[10^2-(14-11)^2.2007] d,15.2^3+4.3-5.7 e,3^3.118-3^3.18 f,12:{390:[500-(125+35.7)]}

Question

Toán Lớp 6:  a,4^8:4^5-(1^30+17):3^2 b,4.5^2-3.2^3 c,150-[10^2-(14-11)^2.2007] d,15.2^3+4.3-5.7 e,3^3.118-3^3.18 f,12:{390:[500-(125+35.7)]}

dongoclandiem · Answer

Giải đáp + bước giải :         a,4^8:4^5-(1^30+17):3^2         = 64 - 18 : 9         = 62        b,4.5^2-3.2^3       = 4 . 25 - 3 . 8       = 100 - 24       =76        c,150-[10^2-(14-11)^2.2007]         = 150 -( 100 - 3&sup2; . 2007)         = 150 - ( 100 - 9 . 2007 )        = 150 - ( 100 - 18063)     =   150 - ( - 17963)     =   150 + 17963     =  18113       d,15.2^3+4.3-5.7       = 15 . 8 + 12 - 35       = 120 - 23       = 97        e,3^3.118-3^3.18         = 27 . 118 - 27 .18         = 27.( 118 -18)         =27 . 100         =2700         f,12:{390:[500-(125+35.7)]}         = 12:{390:[500-370]}         = 12:{390:130}         = 12 : 3         = 4          mk gửi bạn chủ tus ạ xin hay nhất cho nh&oacute;m ~ thank you ~

huongtructram · Answer

a,4^8:4^5-(1^30+17):3^2   =4^3-(1+17):3^2   =64-18:9   =64-2   =62   b,4.5^2-3.2^3   =4.25-3.8   =100-24   =76   c,150-[10^2-(14-11)^2. 2007]   =150-[100-3^2. 2007]   =150-[100-9.2007]   =150-[100-18063]   =150-(-17963)   =18113   d,15.2^3+4.3-5.7   =15.8+4.3-5.7   =120+12-35   =132-35   =97   e,3^3. 118-3^3. 18   =3^3.(118-18)   =3^3. 100   =27.100   =2700   f,12:{390:[500-(125+35.7)]}   =12:{390:[500-(125+245)]}   =12:{390:[500-370]}   =12:{390:130}   =12:3   =4