= 10000

27 x 54 + 46 x 27 + 73 x 65 + 35 x 73

= ( 54 + 46 ) x 27 + ( 65 + 35 ) x 73

= 100 x 27 + 100 x 73

= ( 27 + 73 ) x 100

= 100 x 100

= 10000

Vậy kết quả là 10000 .

\(=390\)

Đề:45+27+65+46+35+73+54+18+27

=(27+73)+(65+35)+(54+46)+(45+27+18)

=100+100+100+90

=390

35×34+35×95+65×75+65×54

=35×(34+95)+65×(75+54)

=35×129 + 65×129

=129×(35+65)

=129×100

=12 900

35×34+35×95+65×75+65×54

=35×(34+95)+65×(75+54)

=35×129+65×129

=129×(35+65)

=129×100

=12900

325+172-72+65

= (325 + 65) + (172 - 72)

= 390 + 100

= 490             

214+(-54)+(-14)+(-46)

= (214 - 14) - (54+46)

= 200 - 100

= 100

245-[(3²-2²).10-5]

= 245 - [(9 - 4). 10 - 5]

= 245 - [5.10 - 5]

= 245 - [50 - 5]

= 245 - 45

= 200

25.2³-(9-14)+(29-34+20)

= 25. 8 + (29 - 9) - (34 - 20 - 14)

= 200 + 20 - 0

= 220

a: 29+131+237+763

=160+1000

=1160

b: 65+327+15+73

=65+15+327+73

=80+400

=480

c: \(12+54:8-8\)

=12+3-8

=15-8

=7

d: \(45\cdot58+45\cdot42\)

\(=45\cdot\left(58+42\right)\)

\(=45\cdot100=4500\)

e: \(35\cdot34+35\cdot26+40\cdot35\)

\(=35\cdot\left(34+26+40\right)\)

\(=35\cdot100=3500\)

f: \(65\cdot25+65\cdot45+30\cdot65\)

\(=65\cdot\left(25+45+30\right)\)

\(=65\cdot100=6500\)

g: \(750:\left\lbrace32-\left\lbrack2^2+\left(5\cdot3^2-42\right)\right\rbrack\right\rbrace+100\)

\(=\frac{750}{32-\left\lbrack4+5\cdot9-42\right\rbrack}+100=\frac{750}{32-4-45+42}+100\)

\(=\frac{750}{28-3}+100\)

=750:25+100

=30+100

=130

h: \(\left\lbrace630:\left\lbrack16+3\cdot\left(6+3\cdot4\right)\right\rbrack\right\rbrace-1\)

\(=\frac{630}{16+3\cdot\left(6+12\right)}-1=\frac{630}{16+3\cdot18}-1\)

\(=\frac{630}{70}-1\)

=9-1=8

i: \(5871:\left\lbrack928-\left(247-82\right)\cdot5\right\rbrack+2175^0\)

\(=\frac{5871}{928-165\cdot5}+1\)

\(=\frac{5871}{928-825}+1=\frac{5871}{103}+1=57+1=58\)

k: \(375:\left\lbrace32-\left\lbrack4+\left(5\cdot3^2-42\right)\right\rbrack\right\rbrace-14\)

\(=\frac{375}{32-\left\lbrack4+5\cdot9-42\right\rbrack}-14\)

\(=\frac{375}{32-\left\lbrack4+45-42\right\rbrack}-14=\frac{375}{32-\left(4+3\right)}-14=\frac{375}{32-7}-14\)

\(=\frac{375}{25}-14\)

=15-14

=1