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1=ĐS=1
2=ĐS=2000
3=ĐS=0
4=ĐS=7036
K MÌNH NHA
`(1995:0,25+1996:4)xx102xx102xx(3:4-0,75)`
`=(1995xx4+1996xx1/4)xx102xx102xx(0,75-0,75)`
`=(1995xx4+1996xx1/4)xx102xx102xx0`
`=(1995xx4+1999xx1/4)xx102xx0`
`=(1995xx4+1996xx1/4)xx0`
`=0`
1996 * 1995 - 1996 * 1994 - 996 - 1000
= 1996 * 1995 - 1996 * 1994 - 1996
= 1996 * 1995 - 1996 * ( 1994 + 1 )
= 1996 * 1995 - 1996 * 1995
= 0 .
\(a)101\times0,75-0,75\)
\(=0,75\times(101-1)\)
\(=0,75\times100=75\)
___________________________________________
`b)10:0,5+4:0,25+8:0,125`
\(=10\times2+4\times4+8\times8\)
\(=5\times4+4\times4+4\times16\)
\(=4\times(5+4+16)\)
\(=4\times25=100\)
(1995 : 0,25 - 1996 : 4) x 101 x 102 x (3:4 - 0,75)
= (1995 - 0,25 - 1996:4) x 101 x 102 x 0
= 0
( 1995 : 0,25 - 1996 : 4 ) x 101 x 102 x ( 3 : 4 - 0,75 )
= ( 1995 : 0,25 - 1996 : 4 ) x 101 x 102 x ( 0,75 - 0,75 )
= ( 1995 : 0,25 - 1996 : 4 ) x 101 x 102 x 0
= 0