giúp nha^^
a) (-21) + | -50 | + (-29) – | -2016 |
b) 36 : 3^2 + 3^2 . 2^3 -15^0
c) ( 5^103 – 5^102 – 5^101) : ( 5^99 . 26 – 5^99)
giúp nha^^
a) (-21) + | -50 | + (-29) – | -2016 |
b) 36 : 3^2 + 3^2 . 2^3 -15^0
c) ( 5^103 – 5^102 – 5^101) : ( 5^99 . 26 – 5^99)
a) (-21) + |-50| + (-29) – |-2016|
= (-21) + 50 + (-29) – 2016
= [(-21) + (-29) + 50] – 2016
= ( -50 +50 ) – 2016
= 0 – 2016
= – 2016 .
b) 36 : 32 + 32 . 23 -150
= 36 : 9 + 9 . 8 – 1
= 4 + 72 – 1
= 76 – 1
= 75
c) ( 5103 – 5102 – 5101) : ( 599 . 26 – 599)
= ( 5103 – 5102 – 5101) : [ 599 . ( 26 – 1)]
= ( 5103 – 5102 – 5101) : ( 599 . 25 )
= 5101 ( 52 – 51 – 50) : ( 599 . 52 )
= ( 5101 . 19 ) : 5101
= 19
Chúc bạn học tốt<333
@Team FA
a, (-21) + |-50| + (-29)- |-2016|
= -21+ 50- 29- 2016
= -2016
b, 36 : 3² + 3² . 2³ -15^0
= 36: 9+ 9.8- 1
= 4+ 72- 1
= 75
c, ($5^{103}$- $5^{102}$- $5^{101}$ ): ($5^{99}$. $26$- $5^{99}$)
= $5^{101}$($5^{2}$ -$5$- $1$): $5^{99}$($26$- $1$)
= ($5^{101}$. $19$) : ($5^{99}$. $5^{2}$)
= $5^{101}$. $19$ : $5^{101}$
= $19$