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(111 + 222 + 333 + 444 + 555 + 666 + 777 + 888 + 999)x 2.................999 x 2 x 2 x 2 ?
A.(111 + 222 + 333 + 444 + 555 + 666 + 777 + 888 + 999)x 2 > 999 x 2 x 2 x 2 = 9990 > 7992
B.(111 + 222 + 333 + 444 + 555 + 666 + 777 + 888 + 999)x 2 < 999 x 2 x 2 x 2 = 9990 < 7992
C.(111 + 222 + 333 + 444 + 555 + 666 + 777 + 888 + 999)x 2 = 999 x 2 x 2 x 2 = 9990 = 7992
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a)\(x=1482-\left(175+1225\right)=1482-1400=82\)
b)\(x=\left(1000-750\right)+850=1100\)
c)\(x=999-\left(999-921\right)=999-78=921\)
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a) x + 125 = 999
x = 999 - 125
x = 874
b) x- 125 = 999
x = 999 + 125
x = 1124
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\(x:4=997+999\)
\(x:4=1996\)
\(x\) \(=1996\) x \(4\)
\(x\) \(=7984\)
Vậy \(x=7984\)
Trả lời:
\(999\times999\times999\times999\)
\(=999^4\)
hok tốt nhé!
\(\text{Câu hỏi :}\)
\(999\cdot999\cdot999\cdot999=?\)
\(\text{Trả lời :}\)
\(999\cdot999\cdot999\cdot999\)
\(=999^4\)
\(\text{Chúc bạn học tốt !}\)