\(48\div4+3^9\div3^7+5^0\)

\(=12+9+1\)

\(=22\)

\(\left(5^{19}\div5^{17}+3\right)\div7\)

\(=\left(25+3\right)\div7\)

\(=28\div7\)

\(=4\)

\(295-\left(32-2^2\times5\right)^2\)

\(=295-144\)

\(=151\)

\(6^2\div9+50\times2-3^3\times3\)

\(=36\div9+100-27\)

\(=4+100-27\)

\(=100-27\)

\(=73\)

48:4+39:37+50

=48:4+3²+1

=12+9+1=22

(519:517+3):7

=(5²+3):7

=(25+3):7

=28:7=4

295-(31-22.5)2

=295-(31-4.5)²

=295-(31-20)²

=295-11²

=295-121

=174

62:9+50.2-33.3

=36:9+50.2-3⁴

=4+100-81

=23

a)156-4=152

b)42(39-37)]:42

=42.2:42

=2

c)2448:(119-17)

=2448:102

=24

2021.1001 - 2021

= 2021.1001 - 2021. 1

= 2021. ( 1001 - 1 )

= 2021. 1000

= 2021000.

a: \(=2021\cdot\left(1001-1\right)=2021000\)

b: \(=135\cdot3^3+5\cdot3^3\cdot4-5\cdot3^4\)

\(=3^3\left(135+20\right)-5\cdot3^4\)

\(=3^3\cdot155-5\cdot3^4\)

\(=3^3\left(155-5\cdot3\right)=27\cdot140=3780\)

a 2021.1001-2021 

=2021.(1001-1)

=2021.1000

=2021000

Bài 1: Bạn xem lại đã viết đúng đề chưa vậy.

Bài 2:

$P=29-|16+3.2|+1=29-|22|+1=29-22+1=7+1=8$

a/ -21

b/ -7400

c/-2/11

KB vs tích hộ mk nhá

a,\(3^3\)+12.\(^{2^3}\)=27+12.8=27+96=123.

b,38.5²⁺³⁸.49+76.13=38.25+38.49+76.13=950+1862+988=2812+988=3800

c,,\(^{2015^0}\)-[\(^{12^2}\)-\(^{2^4}\).(5^2-4^2)=1-[144-16.(25-16)=1-[144-16.9]=1-[144-144]=1-0=1

d,33+35=37+(-8)+39

a)-2020+(2019-1968)-(2019-2020)=2020+51-(-1)=2071+1=2072

b)-37x16+36x(-37)-2x(-37)=-37x(16+36-2)=-37x50=-1850

c)1000:(-10)2+3.(-5)-(-155).0=-100.2+(-15)-0=-200+-15=-215