Tính hợp lí:
\(\dfrac{6^{36}.\left(50.5^{40}-10.5^{34}\right)}{30^{30}.10^4.\left(100.15^5-4.3^5\right)}\)
1.tính hợp lí nếu có thể
120-\(^{\left\{300:\left[40-\left(2.562-262.5\right)\right]+10\right\}}\)
263.3-(1610+15):462
6^2:4.3+2.562-201
2. tìm x
(x-140):5=3^3-2^3.3
[(5x+2):7-6].17=340
5+3^x=2.(4^2-3^2)
nhanh mik tick cho
Tính hợp lí:
a) \(\left(-0,4\right)+\dfrac{3}{8}+\left(-0,6\right)\)
b) \(\dfrac{4}{5}-1,8+0,375+\dfrac{5}{8}\)
c) \(\dfrac{7}{3}.\left(-2,5\right).\dfrac{6}{7}\)
d) \(\dfrac{7}{12}.\left(-2,34\right)-\dfrac{7}{12}.\left(-0,34\right)\)
e) \(\dfrac{-8}{3}.\dfrac{2}{11}-\dfrac{8}{3}:\dfrac{11}{9}\)
Giúp với!
Tính hợp lý:
\(A=\dfrac{7}{12}+\dfrac{5}{12}:6-\dfrac{11}{36}\) \(B=\left(\dfrac{4}{5}+\dfrac{1}{2}\right):\left(\dfrac{3}{13}-\dfrac{8}{13}\right)\)
\(C=\left(\dfrac{2}{3}-\dfrac{1}{4}+\dfrac{5}{11}\right):\left(\dfrac{5}{12}+1-\dfrac{7}{11}\right)\)
1.Tính hợp lí
a) \(0,7+\dfrac{-7}{19}-\left(-0,3\right)\)
b) \(\dfrac{5}{3}.\left(-2,5\right):\dfrac{5}{6}\)
c) \(0,6.\dfrac{-5}{17}-\dfrac{3}{5}.\dfrac{12}{17}\)
d) \(\dfrac{7}{4}.\dfrac{5}{2}-\dfrac{7}{4}.\dfrac{3}{2}\)
Giúp tui với!
c) \(\dfrac{\left(2^4.3^5\right)^3.49^{15}-31.6^{12}.9.\left(7^7\right)^4}{2^{11}.21^{14}.343^5+\left(2^4.3^5.7^{10}\right)^3}\)
giúp minh với các bạn ơi. huhu ai đúng mình tích cho nhé
\(\dfrac{4}{5}+\left(\dfrac{-7}{6}\right)-\dfrac{1}{30}\)
Tính hợp lý:
\(\dfrac{2^{12}.3^5-4^6.9^2}{\left(2^2.3\right)^6}-\dfrac{5^{10}.7^3-25^5.49^2}{\left(125.7\right)^3+5^9.14^3}\)
Bài 1.( 2 điểm)Tính bằng cách hợp lí:
a) \(\dfrac{1}{2}+\dfrac{9}{10}+\dfrac{5}{6}-\dfrac{11}{14}-\dfrac{1}{3}+\dfrac{-4}{35}\)
b) \(\left(\dfrac{18}{23}+\dfrac{7}{12}\right)+\left(\dfrac{-13}{19}-\dfrac{3}{4}\right)+\left(\dfrac{-6}{19}+\dfrac{5}{23}\right)\)
c) \(\dfrac{4}{3}+\dfrac{-5}{6}+\dfrac{-1}{4}\)
d) \(\dfrac{5}{6}-\dfrac{7}{5}+\dfrac{17}{30}\)