Bài 2 : Tính :
a) 24 . 5 - \(\left[131.\left(13-4\right)^2\right]\)
b) 100 : \(\left\{230:\left[450-\left(4-5^3-5^2.25\right)\right]\right\}\)
c) 30 . \(\left\{175:\left[355-\left(135+37.5\right)\right]\right\}\)
Loga
Toán lớp 6
Các câu hỏi liên quan
Tìm X
| a) (X x 7 + 8) : 5 = 10 b) (X + 5) x 19 : 13 = 57 c) 4 x (36 – 4 x X) = 64 d) 7,6 : 1,9 x X = 3,2 e) (X : 2 + 50) : 5 = 12 |
g) 280 : (7 + 3 x X) = 4
h) 6 x (28 – 8 x X) = 72
i) (X – 15 ) x 3 : 12 = 6
k) (X : 4 + 6) x 7 = 70
l) 5 x (7 + 3 x X) = 140
