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Câu 1 :\(289:17-324:18+18:3\)
\(=17-18+6\)
\(=-1+6\)
\(=5\)
Câu 2 : \(18.3-182+3.\left(51:17\right)\)
\(=18.3-182+3.3\)
\(=54-182+9\)
\(=-128+9\)
\(=-119\)
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\(\dfrac{15}{17}.\dfrac{218}{219}.\dfrac{-17}{15}=-\dfrac{218}{219}\)
15/17 . 218/219 . -17/15
=15/17 . -17/15 . 218/219
= -1 . 218/219
= - 218/219
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\(\frac{5}{17}.\frac{16}{33}+\frac{5}{33}.\frac{20}{17}-\frac{2}{17}.\frac{5}{33}\)
\(=\frac{5}{17}.\frac{16}{33}+\frac{5}{17}.\frac{20}{33}-\frac{5}{17}.\frac{2}{33}\)
\(=\frac{5}{17}.\left(\frac{16}{33}+\frac{20}{33}-\frac{2}{33}\right)\)
\(=\frac{5}{17}.\frac{34}{33}\)
\(=\frac{10}{33}\)
Chúc bạn học tốt !!!
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= 33.17 - 33.5 - 17.33 + 17.5
= 17.5 - 33.5
= 5.(17 - 33)
= 5.(-16)
= -80
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33.(17 - 5)-17.(33-5)
33.12-17.28
=396-476
= - 80
tk cho mình nha
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4^35=(2^2)^35=2^70
8^23=(2^3)^23=2^69
Do 70>69 nên 4^35 > 8^23
TTự tự làm câu dưới
TL :
\(324:218.33+\left(17.58-17-17.43\right)\)
\(\text{324 : 218 .33 + ( 17 . 58 .- 17 .1 - 17.43 )}\)
\(\text{324 : 218 . 33 + ( 17. ( 58 - 43 - 1 )}\)
\(324:218+33-\left(17.10\right)\)
\(324:251-170\)
\(324:81\)
\(=4\)
TL:
= 4
HT