\(A=-\frac{7}{813}+496.-\frac{7}{813}+-\frac{7}{813}.316\)
\(A=-\frac{7}{813}.\left(1+496+316\right)\)
\(A=-\frac{7}{813}.813\)
\(A=-7\)
Các câu hỏi tương tự
Tính nhanh
C = -7/813 + 496 x (-7/813) + (-7/813) x 316
tính nhanh
A = \(\frac{-7}{813}\)+ 496 . (\(\frac{-7}{813}\)) + (\(\frac{-7}{813}\)) . 316
B= \(\frac{-9}{10}\).\(\frac{5}{14}\)+ \(\frac{1}{10}\). (\(\frac{-9}{2}\))+ \(\frac{1}{7}\). (\(\frac{-9}{10}\))
Aleft(frac{1999}{2011}-frac{2011}{1999}right)-left(frac{-12}{1999}-frac{12}{2011}right) Dfrac{-7}{318}+496.left(frac{-7}{813}right)+left(frac{-7}{813}right).316 Bfrac{2}{5}left(frac{3}{11}+frac{-2}{5}right) Cfrac{-5}{7}.frac{4}{13}+frac{-5}{7}.frac{9}{13}+frac{-2}{7} Efrac{-9}{10}.frac{5}{14}+frac{1}{10}.left(frac{-9}{2}right)+frac{1}{7}.left(frac{-9}{10}right)
Đọc tiếp
\(A=\left(\frac{1999}{2011}-\frac{2011}{1999}\right)-\left(\frac{-12}{1999}-\frac{12}{2011}\right)\) \(D=\frac{-7}{318}+496.\left(\frac{-7}{813}\right)+\left(\frac{-7}{813}\right).316\)
\(B=\frac{2}{5}\left(\frac{3}{11}+\frac{-2}{5}\right)\)
\(C=\frac{-5}{7}.\frac{4}{13}+\frac{-5}{7}.\frac{9}{13}+\frac{-2}{7}\) \(E=\frac{-9}{10}.\frac{5}{14}+\frac{1}{10}.\left(\frac{-9}{2}\right)+\frac{1}{7}.\left(\frac{-9}{10}\right)\)
Rút gọn biểu thức: a) x + 51 + (-56) + 24; b) (-65) - ( x + 27) + 26 c) 813 - ( 813 - x) + 213 d) 125 - (125 - x) + 22
a, A = 110- (-761)+296+1454-(-813+1077)
b , B = 15.4^12.9^7-4.3^15.8^8/19.2^24.3^14-6.4^12.47^5
c , C = 2^50-2^49-2^48-2^47-...-2^2-2
a)-23+176-(2176-23)
b) 125.(-24)+24.225
c) \(\frac{5}{11}\)+\(\frac{26}{22}\)+\(\frac{-12}{4}\)+\(\frac{7}{-11}\)
d)\(\frac{3^2.25+9.75}{500}\)
e) -2015.73+2015.173+ (\(\frac{-2015}{2016}\))0
f)-187(813+2016)-813(2016-187)
Cho
A
1
4
+
−
5
13
+
2
11
+
−
8
13
+
3
4
. Chọn câu đúng. A. A 1 B. A
2...
Đọc tiếp
Cho A = 1 4 + − 5 13 + 2 11 + − 8 13 + 3 4 . Chọn câu đúng.
A. A > 1
B. A = 2 11
C. A = 1
D. A = 0
813-5x=28
37 x 275 x 813