\(a,3^3+3^2-\left(2^7:2^5+7^8:7^7\right)=27+9-\left(2^2+7\right)=36-11=25\)

\(b,27.77+27.27-27=27\left(77+27-1\right)=27.103=2781\)

\(c,52:\left(43-30\right)+144-16=52:13+128=4+128=132\)

\(f,3^2.101-3^2.101^0=3^2\left(101-101^0\right)=9\left(101-1\right)=9.100=900\)

a.=27+9-(2^2+7^1)                                                 =36-(4+7)                                                               =36-11                                                                   =25

3³+3²-(2⁷:2⁵+7⁸:7⁷)

=27+9-(2²+7)

=36-(4+7)

=36-11

=25

b.bạn tự lm nha

c.52:(43-30)+144-16

=52:13+144-16

=4+144-16

=148-16

=132

d.174:{2[36+(4²-23)]}

=174:{2[36+(16-23)]}

=174:{2[36+-7]}

=174:{2.29}

=174:58

=3

\(27.72+27.27+27=2700\)

tíc mình nha

27.72+27.27+27

=27.(72+27+1)

=27.100

=2700

27 . 72 + 27 . 27 + 27

= 27 . (72 + 27 + 1)

= 27 . 100

= 2700

27. 77 + 24 . 27 - 27

= 27 . (77 + 24 - 1)

= 77 . 100

= 7700

Chúc bạn học tốt!

=2700

  mk nha

=27(77+24-1)

=27.100

=2700

a) 27.77+24.27-27

= 27.77+24.27-27.1

= 27.(77+24-1)

=27.

chúc bạn học tốt

27 . 77 + 77 - 27

= ( 27 - 27 ) .77 + 24

= 0 . 77 + 24

= 0 + 24

= 24

\(-27.77-54.11-27\\ =27.\left(-77\right)-27.22-27.1\\ =27.\left(-77-22-1\right)\\ =27.\left(-100\right)\\ =-2700\)

\(27.77+24.27-27\)

\(=27.\left(77+24-1\right)\)

\(=27.100\)

\(=2700\)

\(174\div\left\{2\left[36+\left(4^2-23\right)\right]\right\}\)

\(=174\div\left\{2\left[36+\left(16-23\right)\right]\right\}\)

\(=174\div\left\{2\left[36+\left(-7\right)\right]\right\}\)

\(=174\div\left\{2.29\right\}\)

\(=174\div58\)

\(=3\)

\(3^2.4-\left[30-\left(5-2\right)^2\right]\)

\(=9.4-\left[30-3^2\right]\)

\(=36-\left[30-9\right]\)

\(=36-21\)

\(=15\)

1)69.24+69.120+144.31

= 69. (24+120) + 144.31

= 144.69 + 144.31

= 144. (69+31)

= 144.100

=14 400

2)95.103-95.2-95

= 95. (103-2-1)

= 95.100

= 9 500

4)47.62+31.106

= 47. 62+ (31.2). 53

= 47.62 + 62. 53

= 62. (47+53)

= 62.100

= 6 200

5) 54.12+27.77-27

= 27. (2.12) + 27.77 - 27.1

= 27. 24 + 27.77 - 27.1

= 27. (24+77-1)

= 27. 100

= 2 700

6) 49+215+51+83+85

= (49+51) + (215+85)+ 83

= 100 +300 + 83

= 483

a)27*77+24*27-27=27*(77+24-1)=27*100=2700

b)(-12)+(-9)+121+|-20|=-21+121+20=100+20=120

c)2⁵*101-2⁵*101⁰=2⁵*101-2⁵*1=2⁵*(101-1)=32*100=3200

2700

120

3200

2700

120

3200

20,15 x 45,23 + 40,3 x 41,27 - 20,15 x 27,77

= 20,15 x 45,23 + (40,3 : 2) x (41,27 x 2) - 20,15 x 27,77

= 20,15 x 45,23 + 20,15 x 82,54 - 20,15 x 27,77

= 20,15 x (45,23 + 82,54 - 27,77)

= 20,15 x (127,77 - 27,77)

= 20,15 x 100

= 2015