=160-(1196-150)

=160-1046

=-886

-886

a)160-(23.52-6.25)

160-(1196-150)

160-1046

-886

b)4.52-32:24

208-4/3

620/3

c)5871:(928-(247-82).5)

5871:(928-165.5)

5871:(928-825)

5871:103

57

A, 160-(2^3.5^2-6.25)

160-50

=110

=> 110= 2.5.7

B,4.5^2-32:2^4

=4.25-32:16

=100-2

=98

=>98=2.7^2

Cau c mk giong kq vs bn tren

a: 785+135-85+65

=785-85+135+65

=700+200

=900

b: \(32\cdot39+52\cdot21-12\cdot39+21\cdot48\)

\(=39\cdot32-12\cdot39+52\cdot21+21\cdot48\)

\(=39\left(32-12\right)+21\left(52+48\right)\)

\(=39\cdot20+21\cdot100=2100+780=2880\)

c: \(5^4\cdot5^8:5^9\cdot6\cdot8\cdot7\)

\(=\dfrac{5^{12}}{5^9}\cdot48\cdot7\)

\(=125\cdot48\cdot7=42000\)

d: \(2021^0-\left\{15^2:\left[175+\left(2^3\cdot5^2-6\cdot25\right)\right]\right\}\)

\(=1-\dfrac{225}{175+8\cdot25-150}\)

\(=1-\dfrac{225}{25+220}\)

=1-1

=0

a) 785 + 135 - 85 + 65 = 900

b) 32.39 + 52.21 - 12.39 + 21.48 = 93.69

c) 5 mũ 4.5 mũ  8 ÷ 5 mũ 9.6 ÷ 8.7 = 0.134

d) 2021 mũ 0 - { 15 mũ 2 : [ 175 + ( 2 mũ 3.5 mũ  2 - 6.25 ) ] } = 2021 mũ 0 - { 152 : [ 175 + 17.27 ] } = 20210 - { 152 : 192.27 } = 20210 - 0.791 = 20209.209

160 - (2³ . 5² - 6 . 25)

= 160 - (8 . 25 - 6 . 25

= 160 . [ 25 . (8-6) ]

= 160 . 50

= 8000

\(160-\left[2^3.5^2-6.25\right]\)

\(=160-\left[8.25-6.25\right]\)

\(=160-\left[25.\left(8-6\right)\right]\)

\(=160-\left[25.2\right]\)

\(=160-50\)

\(=110\)

=160- (2^3.5^2^3.5^2)
=160-0
=160 

\(160-\left(2^3.5^2-6.25\right)\)

\(=160-\left(8.25-6.25\right)\)

\(=160-\left[25.\left(8-6\right)\right]\)

\(=160-50\)

\(=110\)

160-(2³.5²-6.25)

=160-(8*25-6*25)

=160-25*(8-6)

=160-25*2

=160-50

=110

Phân tích ra thừa số nguyên tố là:2x5x11

\(160-\left(2^3.5^3-6.25\right)\)

\(=160-8.125+6.25\)

\(=160-1000+150\)

\(=210-1000\)

\(=-790\)

160-(2^3.5^3-6.25)

= 160 - ( 8.125.150 )

= 160 - 150000

= - 149840

160-(2^3.5^3-6.25)

= 160 - ( 8. 125 - 150)

= 160 - ( 1000 - 150)

= 160 - 850

= -690

=49-9+200=240

\(=7^2-9+8.25=49-9+200=40+200=240\)