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a, 32 x 35 + 32 x 65 b, 150 : [ 25 x ( 18- 42)]
= 32 x ( 35 +65) = 150 : [ 25 x ( 18-16)]
= 9 x 100 = 150 : ( 25 x 2)
= 900 = 150 : 50 = 3
c, 57 : 54 - 21 x 22
= 53- 2 x 4
= 125-8
=117
a) 3 ^ 2 x 35 + 3 ^ 2 x 65 = 9 x 35 + 9 x 65 = 9 x ( 65 + 35 ) = 9 x 100 = 900
A)
=36:4.3+2.25
=9.3+50
=27+50
=77
B)
=5.16-18:9
=80-2
=78
Ủng hộ nhé! Ngồi nãy giờ mà ko đc j cả huhu :(
a/ =60+4-6^2
=64-36
=28
b/ = (9+8.5):7
=(9+40):7
= 49:7
= 7
c/ = 11^2 -243:9 - 60
= 121-27-60
= 34
mời bạn đừng thi thì tốt hơn 
a) \(3.2^2+2^3:2+1234^0\)
\(\Rightarrow3.2^2+2^2+1\)
\(\Rightarrow2^2\left(3+1\right)\)\(+1\)
=>\(2^2.4+1\)\(\Rightarrow4.4+1=17\)
b) \(\left(2^3.5+2^2.25\right)\)\(\div20-5\)
=\(\left(40+100\right):20-5\)
=\(140:20-5=7-5=2\)
=
a , 35 - ( 5 - 18 ) + ( - 17 )
= 35 - 5 + 18 - 17
= 30 + 18 - 17
= 48 - 17
= 31
b , 62 : 4 . 3 + 2 . 52 - 2010
= 36 : 4 . 3 + 2 . 25 - 1
= 9 . 3 + 2 . 25 - 1
= 27 + 50 - 1
= 77 - 1
= 76
a) 100:{250:[450−(4.53−25.4)]}100:{250:[450−(4.53−25.4)]}
=100:{250:[450−(4.125−25.4)]}=100:{250:[450−(4.125−25.4)]}
=100:{250:[450−(500−100)]}=100:{250:[450−(500−100)]}
=100:[250:(450−400)]=100:[250:(450−400)]
=100:(250:50)=100:(250:50)
=100:5=100:5
=20=20
b) 4(18−15)−(5−3).324(18−15)−(5−3).32
=4.3−2.32=4.3−2.32
=4.3−2.9=4.3−2.9
=12−18=12−18
=−6=−6
\(a,2^2.3^2-5.23\)
\(=4.9-115\)
\(=36-115\)
\(=-79\)
\(b,5^2.2+20:2^2\)
\(=25.2+20:4\)
\(=50+5=55\)
a)22. 32-5 . 23
= 4 . 9 - 5 . 23
= 36 - 115
= -79
b)52. 2 + 20 : 22
= 25 . 2 + 20 : 4
= 50 + 5
= 55
c)18 . { 420 : 6+ [150 - ( 68.2 - 23 .5)]}
= 18 . { 70 + [ 150 - ( 136 - 40 ) ] }
= 18 . { 70 + [ 150 - 96 ] }
= 18 . { 70 + 54 }
= 18 . 124
= 2232
Chúc bạn hok tốt!
a)22. 32-5 . 23
=4.9-5.23
=36-115
=-79
b)52. 2 + 20 : 22
= 25.2+20:4
=50+5
=55
c)18 . { 420 : 6+ [150 - ( 68.2 - 23 .5)]}
=18.{70+[150-(136-40)]}
=18.{70+[150-96]}
=18.{70+54}
=18.124
=2232
\(c,18.\left\{420:6+\left[150-\left(68.2-2^3.5\right)\right]\right\}\)
\(=18.\left\{7+\left[150-\left(136-40\right)\right]\right\}\)
\(=18.\left\{7+\left[-26\right]\right\}\)
\(=18.\left(-19\right)\)
\(=-342\) ko chắc :v
\(a,2^2.3^2-5.23\) \(b,5^2.2+20:2^2\)
\(=4.9-115\) \(=25.2+20:4\)
\(=36-115\) \(=50+5\)
\(=-79\) \(=55\)
\(c,18.\left\{420:6+\left[150-\left(68.2-2^3.5\right)\right]\right\}\)
\(=18.\left\{420:6+\left[150-\left(136-8.5\right)\right]\right\}\)
\(=18.\left\{420:6+\left[150-\left(136-40\right)\right]\right\}\)
\(=18.\left\{420:6+\left[150-96\right]\right\}\)
\(=18.\left\{420:6+54\right\}\)
\(=18.\left\{70+54\right\}\)
\(=18.124\)
\(=2232\)