\(\frac{-7}{813}+496\cdot\frac{-7}{813}+\frac{-7}{813}\cdot316\)
ai nhanh nhất mình tik!thanks
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tính nhanh
A = \(\frac{-7}{813}\)+ 496 . (\(\frac{-7}{813}\)) + (\(\frac{-7}{813}\)) . 316
B= \(\frac{-9}{10}\).\(\frac{5}{14}\)+ \(\frac{1}{10}\). (\(\frac{-9}{2}\))+ \(\frac{1}{7}\). (\(\frac{-9}{10}\))
a) \(A=\frac{-7}{813}+496.\left(\frac{-7}{813}\right)+\left(\frac{-7}{813}\right).316\)
\(=\frac{-7}{813}.\left(1+496+316\right)\)
\(=\frac{-7}{813}.813\)
\(=-7\)
b) \(B=\frac{-9}{10}.\frac{5}{14}+\frac{1}{10}.\left(\frac{-9}{2}\right)+\frac{1}{7}.\left(\frac{-9}{10}\right)\)
\(=\frac{-9}{10}.\left(\frac{5}{14}+\frac{1}{2}+\frac{1}{7}\right)\)
\(=\frac{-9}{10}.1\)
\(=\frac{-9}{10}\)
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Tính nhanh
C = -7/813 + 496 x (-7/813) + (-7/813) x 316
C=-7/813+496 x (-7/813)+(-7/813) x 316
=-7/813 x (1+496+316)
=-7/813 x 813
=-7
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\(C=\frac{-7}{813}+496.\frac{-7}{813}+\frac{-7}{813}.316\)
\(C=\frac{-7}{813}.1+496.\frac{-7}{813}+\frac{-7}{813}.316\)
\(C=\frac{-7}{813}.\left(1+496+316\right)\)
\(C=\frac{-7}{813}.813\)
\(C=\frac{-5691}{813}=-7\)
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\(C=\frac{-7}{813}+496\cdot\frac{-7}{813}+\frac{-7}{813}\cdot316\)
\(C=\frac{-7}{813}\cdot1+496\cdot\frac{-7}{813}+\frac{-7}{813}\cdot316\)
\(C=\frac{-7}{813}\cdot\left[1+496+316\right]\)
\(C=\frac{-7}{813}\cdot813=-7\)
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A=-7/813+496×(-7/813)+(-7/813)×316
\(A=-\frac{7}{813}+496.-\frac{7}{813}+-\frac{7}{813}.316\)
\(A=-\frac{7}{813}.\left(1+496+316\right)\)
\(A=-\frac{7}{813}.813\)
\(A=-7\)
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)
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\(A=\left(\frac{1999}{2011}-\frac{2011}{1999}\right)-\left(\frac{-12}{1999}-\frac{12}{2011}\right)\) \(D=\frac{-7}{318}+496.\left(\frac{-7}{813}\right)+\left(\frac{-7}{813}\right).316\)
\(B=\frac{2}{5}\left(\frac{3}{11}+\frac{-2}{5}\right)\)
\(C=\frac{-5}{7}.\frac{4}{13}+\frac{-5}{7}.\frac{9}{13}+\frac{-2}{7}\) \(E=\frac{-9}{10}.\frac{5}{14}+\frac{1}{10}.\left(\frac{-9}{2}\right)+\frac{1}{7}.\left(\frac{-9}{10}\right)\)
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)
a) -23 + 176 - (2176 - 23)
= -23 + 176 - 2176 + 23
= (-23 + 23) + (176 - 2176)
= 0 + (-2000)
= -2000
b) 125 . (-24) + 24 . 225
= (-125) . 24 + 24 . 225
= 24 . (-125 + 225)
= 24 . 100
= 2400
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giải cho mình bài tính nhanh nha , thanks
\(a,5\frac{7}{5}\cdot4\frac{2}{7}+5\frac{5}{7}\cdot4\frac{2}{7}\)
\(b,\frac{-7}{11}\cdot\frac{4}{19}+\frac{-7}{19}\cdot\frac{7}{11}+2\frac{7}{19}\)
\(\sqrt{813+72}\) x 15 + \(\frac{6}{5}\)=
\(\sqrt{813+72}.15+\frac{6}{5}\\ < =>\sqrt{900}.15+\frac{6}{5}\\=30.15+\frac{6}{5}\\ =450+\frac{6}{5}\\ =451,2\)
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Mình mong ai đo trả lời giúp mình:
Tinh bằng cách thuận tiện
\(\frac{9}{25}\cdot\frac{5}{7}+\frac{6}{25}\cdot\frac{20}{28}+2\cdot\frac{1}{5}:\frac{7}{5}-\frac{3}{7}-\frac{2}{7}\)
viết lại bài tìm x c, 2-|frac{3}{4}-x|-frac{1}{12}bài tính nhanh a,5frac{7}{5}cdot4frac{2}{7}+5frac{5}{7}cdot4frac{2}{7}b,frac{-7}{11}cdotfrac{4}{19}+frac{-7}{19}cdotfrac{7}{11}+2frac{7}{19}c,frac{5}{7}cdotfrac{1}{3}-frac{5}{7}cdotfrac{1}{4}-frac{5}{7}cdotfrac{1}{12}làm nhanh lên nhé vì mai mình nộp rồi
Đọc tiếp
viết lại bài tìm x
c, \(2-|\frac{3}{4}-x|-\frac{1}{12}\)
bài tính nhanh
\(a,5\frac{7}{5}\cdot4\frac{2}{7}+5\frac{5}{7}\cdot4\frac{2}{7}\)
\(b,\frac{-7}{11}\cdot\frac{4}{19}+\frac{-7}{19}\cdot\frac{7}{11}+2\frac{7}{19}\)
\(c,\frac{5}{7}\cdot\frac{1}{3}-\frac{5}{7}\cdot\frac{1}{4}-\frac{5}{7}\cdot\frac{1}{12}\)
làm nhanh lên nhé vì mai mình nộp rồi