\(=21+3^2+1=22+9=31\)

\(=21+3^2+1=31\)

-84 : 4 + \(3^9:3^7+5^0=-21+3^2+1=-21+9+1=-11\)

= -11

= -21 + 9 + 1 

= -12 + 1

= -11

84:4 + 3⁹ : 3⁷ + 5⁰

= 21 + 3² + 1

= 21 + 9 + 1

= 30 + 1

= 31 

\(a,=75+60-13=122\\ b,=250-25+40=265\\ c,=4+100-9=95\\ d,=45+80-27=98\\ e,=5^3-100=125-100=25\\ g,=5+5=10\)

a)
=\(3.5.5+3.5.2-13=3.5\left(5+2\right)-13=15.7-13=105-13=92\)
b)
\(=5^3.2-25+2^3.5=5.25-5.5+8.5=5\left(25-5+8\right)=5.28=140\)
c)
\(6^2:9+50.2-3^3.3=36:9+100-3^4\)
=\(4+100-81\)=23

a: \(3\cdot5^2+15\cdot2^2-26:2\)

\(=75+60-13\)

=122

b: \(5^3\cdot2-100:4+2^3\cdot5\)

\(=250-25+40\)

=265

c: \(6^2:9+50\cdot2-3^3\cdot3\)

\(=4+100-9\)

=95

a)100:25+7.9=4+16=20

b)84:4+9+1=31

c)29-(16+3.1)=10

d)5.4+98:49=20+2=22

a: =4+7x9

=67

b: =21+9+1

=31

\(a)\) \(5^{13}:5^{10}-25.2^2=5^3-25.4=125-100=25\)

\(b)\) \(20:2^2+5^9:5^8=20:4+5^1=5+5=10\)

\(c)\) \(100:5^2+7.3^2=100:25+7.9=4+36=40\)

\(d)\) \(84:4+3^9:3^7+5^0=84:4+3^2+1=21+9+1=31\)

\(e)\)

\(29-\left[16+3.\left(51-49\right)\right]=29-\left[16+3.2\right]=29-\left[16+6\right]=29-22=7\)

\(f)\) \(5.2^2+98:7^2=5.4+98:49=20+2=22\)

\(g)\) \(3^{11}:3^9-147:7^2=3^2-147:49=9-3=6\)

\(295-\left(31-2^2.5\right)^2=295-\left(31-4.5\right)^2=295-\left(31-20\right)^2=295-11^2=295-121=174\)

\(7^{18}:7^{16}+2^2.3^2=7^2+4.9=49+36=85\)

a: \(5^{13}:5^{10}-25\cdot2^2\)

\(=5^3-25\cdot4\)

=125-100

=25

b: \(20:2^2+5^9:5^8\)

\(=20:4+5\)

=5+5

=10

Số thập phân 37,84 bằng b,37,840

Phân số 11/25 viết thành phân số thập phân là c,44/100

\(8m^23dm^2=8,3m^2\)

8,3m2

50 + 200 x 37 - 39 : 3 + 456 - 324 + 9588 x 3/4 

= 15210 

s mik mik s lại

50 + 200 x 37 - 39 : 3 + 456 - 324 + 9588 x \(\frac{3}{4}\)= 14760

a)  ( − 4 ) .13. ( − 250 ) = ( − 4 ) . ( − 250 ) .13 = 1000.13 = 13000

b)  ( − 37 ) .84 + 37. ( − 16 ) = ( − 37 ) .84 + ( − 37 ) .16 = ( − 37 ) . ( 84 + 16 ) = ( − 37 ) .100 = − 3700

c)  25. ( − 5 ) .4. ( − 20 ) = 25.4. ( − 5 ) . ( − 20 ) = 100.100 = 10000

d)  ( − 48 ) .72 + 36. ( − 304 ) = ( − 48 ) .2.36 + 36. ( − 304 ) = ( − 96 ) .3 + 36. ( − 304 )