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(98 x 7676 - 9898 x 76) : (2001 x 2002 x 2003 x ... x 2010)
=0:(2001 x 2002 x 2003 x ... x 2010)
=0
(98 x 7676 - 9898 x 76) : (2001 x 2002 x 2003 x ... x 2010)
= (98 x 76 x 101 - 98 x 101 x 76) : (2001 x 2002 x 2003 x ... x 2010)
= 0 : (2001 x 2002 x 2003 x ... x 2010)
= 0
a)(44x52x60):(11x13x15) =(44:11)x(52:13)x(60:15)=4x4x4 =64
\(a.\)
\(\left(44.52.60\right):\left(11.13.15\right)=\frac{44.52.60}{11.13.15}\frac{4.4.4\left(11.13.15\right)}{\left(11.13.15\right)}=4^3=64\)
( 98 x 7676 - 9898 x 76 ) : ( 2001 x 2002 x........x 2010)
=(98x101x76-98x101): ( 2001 x 2002 x........x 2010)
=0: ( 2001 x 2002 x........x 2010)
=0
tich dung cho minh nha
(98*7676-9898*76)/(2001*2002*...*2010)
=(98*101*76-101*98*76)/(2001*2002*...*2010)
=0/(2001*2002*...*2010)=0
(98×7676-9898×76):(2001×2002×2003)
=(98×76×101-98×101×76):(2001×2002×2003)
=0:(2001×2002×2003)
=0
A = [ -506 + 732 - ( -2000 )] - ( 506 - 1732 )
A = [ 226 - ( -2000 )] - ( 506 - 1732 )
A = 2226 - ( -1226 )
A = 3452
B = 38 + 41 + 117 + 159 + 62
B = ( 38 + 62 ) + (41 + 159) + 117
B = 100 + 200 + 117
B = 417
C = 73 + 86 + 968 + 914 + 3032
C = ( 86 + 914 ) + ( 968 + 3032 ) + 73
C = 1000 + 4000 + 73
C = 5073
D = 123 x 456456 - 456 x 123123
D = 123x456x1001-456x123x1001
D = 56088 x 1001 - 56088 x 1001
D = 1001x ( 56088 - 56088 )
D = 1001 x 0
D = 0
F = 1000 x ( 456 x 789789 -789 x 456456 )
F = 1000 x 0
F =0
5 x 7 x 77 - 7 x 60 + 49 x 25 - 15 x 42
= 7 x 77 x 5 - 7 x 60 + 7 x 7 x 25 - 15 x 6 x 7
= 7 x 385 - 7 x 60 + 7 x 35 - 7 x 90
= 7 x ( 385 - 60 + 35 - 90 )
= 7 x 270
= 1890
a, 53 * 39 + 47 * 59 - 53 * 21 - 47 * 21 c, (43 * 52 - 43 ) : ( 4 * 42 )
= ( 53 + 47 ) * 39 - ( 53 + 47 ) * 21 = ( 64 * 25 - 64 ) : ( 4 * 16 )
= 100 * 39 - 100 * 21 = ( 1600 - 64 ) : 64
= ( 39 - 21 ) * 100 = 1536 : 64
= 18 * 100 = 24
= 1800