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370x101
=370 x (100 + 1)
= 370 x 100 + 370 x 1
= 37000 + 370
= 37370
Chúc bạn học tốt
370 x ( 100 +1) = 370 x 100 + 370 x 1 = 37000 + 370 = 37370
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\(\dfrac{87x52x64}{58x26x16}=\dfrac{29x3x2x4}{58}=\dfrac{3x4}{1}=12\)
*Thực hiện phương pháp gạch bỏ*
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1+2+3+4+5+6+7+8+9 = ( 1+9) + ( 2+8) + (3+7) + (4+6) +5
= 10 + 10 + 10 + 10 + 5
= 45
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1, \(\dfrac{16\times25-22\times16}{7\times3+5\times7}=\dfrac{16\times\left(25-22\right)}{7\times\left(5+3\right)}=\dfrac{16\times3}{7\times8}\)
\(=\dfrac{6}{7}\)
2,\(\dfrac{2001\times2003+2003\times2005}{2003\times4006}=\dfrac{2003\times\left(2001+2005\right)}{2003\times4006}=\dfrac{2003\times4006}{2003\times4006}=1\)
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\(26\times8+4\times13-10\times26\)
\(=26\times8+2\times2\times13-10\times26\)
\(=26\times8+2\times26-10\times26\)
\(=26\times\left(8+2-10\right)\)
\(=26\times0\)
\(=0\)
#Đang Bận Thở
\(\frac{2\cdot3\cdot6\cdot7}{12\cdot7\cdot9\cdot2}\)
\(=\frac{2\cdot3\cdot6\cdot7}{2\cdot6\cdot7\cdot9\cdot2}\)
\(=\frac{1}{6}\)
cai nay de lam nhung toi khong biet