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Ttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttat ca nhan voi 7/5 nua

\(A=\frac{1999\times2001-1}{1998+1999\times2000}=\frac{1999\times2000+1999-1}{1998+1999\times2000}=\frac{1999\times2000+1998}{1998+1999\times2000}=1\)


175 - 50 + 25 - 50
= ( 175 - 25 ) + ( 50 - 50 )
= 150 + 0
= 150
37 * 38 - 18 * 37 + 100
= 37 * ( 38 - 18 ) + 100
= 37 * 20 + 100
= 740 + 100
= 840
TÍCH NHA!
a ) 175 - 50 + 25 - 50
= 125 + 25 - 50
= 150 - 50
= 100
b ) 37 * 38 - 18 * 37 + 100
= 37 * (38 - 18) + 100
= 37 * 20 + 100
= 740 + 100
= 840

A = \(\frac{1}{1}-\frac{1}{1000}=\frac{999}{1000}\)
Tick mình nhé !

2x3x4x8x50x25x125
=(2x50)x(4x25)x(8x125)x3
=100x100x1000x3
=10000000x3=30000000

a: Khi m=5 thì 50+50:m+100=50+50:5+100=150+10=160
b: n=7dm=70cm
\(\left(m+n+p\right)\cdot2=\left(62+70+81\right)\cdot2=426\left(cm\right)\)
50 + 150 : 15 + 100
= 50 + 10 + 100
= 160
😵😵😵