2252545+2525+2525
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81 + 243 + 19
= ( 81 + 19 ) + 243
= 100 + 243
= 343
( x - 2525 - 2525 ) +6262 + 321 = 10000
( x - 5050 ) + 6583 = 10000
x - 5050 = 3417
x = 8467
315 \(x\)(46-x) = 401
46 - x = \(\frac{401}{305}\)
-x =\(-\frac{13629}{305}\)
x = \(\frac{13629}{305}\)
49 \(x\)313 + 187 \(x\)72 +350
=14398 + 9163 + 350
=23911
250 - 160 - ( 18 - 12 ) 2
= 90 - 62
=54
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\(\frac{2323}{2525}+\frac{212121}{252525}\)
\(=\frac{23\times101}{25\times101}+\frac{21\times10101}{25\times10101}\)
\(=\frac{23}{25}+\frac{21}{25}\)
\(=\frac{44}{25}\)
\(\frac{2323}{2525}+\frac{212121}{252525}\)
\(=\)\(\frac{23}{25}+\frac{21}{25}\)
\(=\frac{44}{25}\)
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\(\dfrac{2929}{2525}\cdot\dfrac{505050}{848484}\cdot\dfrac{42}{29}\)
\(=\dfrac{29}{25}\cdot\dfrac{50}{84}\cdot\dfrac{42}{29}\)
\(=\dfrac{29}{29}\cdot\dfrac{50}{25}\cdot\dfrac{42}{84}=1\cdot2\cdot\dfrac{1}{2}=1\)
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ta có: \(\frac{1717}{2525}=\frac{17}{25}\)
\(\frac{515151}{727272}=\frac{51}{72}=\frac{17}{24}>\frac{17}{25}\)
\(\Rightarrow\frac{1717}{2525}< \frac{515151}{727272}\)
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2252545+2525+2525
=2255070+2525
=2257595
2252545+2525+2525
=2255070+2525=2257595