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\(=\left(45\cdot128-45\cdot128\right)\cdot\left(45\cdot46+47\cdot48\right)\cdot\left(51\cdot52-49\cdot48\right)\cdot\left(1995\cdot1996+1997\cdot1998\right)\)
=0*A
=0
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4524 - (864 - 999) - (36 + 3999)
= 4524 - 864 + 999 - 36 - 3999
= (4524 - 864) + (999 - 3999) - 36
= 3660 - 3000 - 36
= 660 - 36
= 624.
(Tíck cho mìk vs nha!)
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a) \(\frac{158\cdot168-168\cdot58}{110}\)
\(=\frac{\left(158-58\right)\cdot168}{110}\)
\(=\frac{100\cdot168}{110}=\frac{16800}{110}=\frac{1680}{11}\)
b) \(\frac{\left(456.11+912\right)\cdot37}{13\cdot74}\)
\(=\frac{456\cdot11+456\cdot2\cdot37}{13\cdot37\cdot2}\)
\(=\frac{456\cdot\left(11+2\right)\cdot37}{\left(13\cdot2\right)\cdot37}\)
\(=\frac{456\cdot13\cdot37}{26\cdot37}=228\)
c) \(\frac{864\cdot48-432\cdot96}{864\cdot48\cdot432}\)
\(=\frac{432\cdot2\cdot48-432\cdot48\cdot2}{432\cdot2\cdot48\cdot432}=0\)
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a)1050:15-350:15+176=(1050-350):15+176=700:15+176=140/3+176=668/3
b)4320:9-8640:18+750=4320:9-8640:2:9+750=4320:9-4320:9+750=0+750=750
C)864*48-432*96=864.48-432.2.48=864.48-864.48=0
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a)4524-(864-999)-(36+3999)=4524-864+999-36-3999=(4524-864)-(3999-999)-36=3660-3000-36=660-36=624
b)câu này bạn ghi thiếu đề
864.48-432.96 = 432.2.48-432.96=432.96-432.96=...=0
.....=> \(\frac{864.48-432.96}{2003.2004.2017}=0\)
Sai đề!