=155( 155-41):114

= 155. 114:114

= 155

(155.155-155.41):114

= 155(155-41):114

=155.114:114=155

155 x 26 + 73 x 155 + 155.

= 155 x 26 + 73 x 155 + 155 x 1

= 155 x ( 26 + 73 + 1 )

= 155 x 100

= 15500.

#Học tốt.

thank you

155 x 26 + 73 x 155 + 155.

= 155 x 26 + 73 x 155 + 155 x 1

= 155 x ( 26 + 73 + 1 )

= 155 x 100

= 15500.

155 x( 26+73+1)= 155x 100

a: \(B=\dfrac{154}{155+156}+\dfrac{155}{155+156}\)

\(\dfrac{154}{155}>\dfrac{154}{155+156}\)

\(\dfrac{155}{156}>\dfrac{155}{155+156}\)

=>154/155+155/156>(154+155)/(155+156)

=>A>B

b: \(C=\dfrac{2021+2022+2023}{2022+2023+2024}=\dfrac{2021}{6069}+\dfrac{2022}{6069}+\dfrac{2023}{6069}\)

2021/2022>2021/6069

2022/2023>2022/2069

2023/2024>2023/6069

=>D>C

41/42+55/56+71/72+89/90+109/110+131/132+155/156

=1 - 1/42 + 1 - 1/56 + 1 - 1/72 + 1 - 1/90 + 1 - 1/110 + 1 - 1/132 + 1 - 1/156

=(1+1+1+1+1+1+1)+(1/42 - 1/56 - 1/72 - 1/90 - 1/110 - 1/132 - 1/156)

=7+(1/6x7 - 1/7x8 - 1/8x9 -1/9x10 -1/10x11-1/11x12-1/12x13)

=7+(1/6-1/7+1/7-1/8+1/8-1/9+1/9-1/10+1/10-1/11+1/11-1/12+1/12-1/13)

=7+(1/6-1/13)

=7+(13/78-6/78)

=7+7/78

=546/78+7/78

=553/78

k mình he!!

vì mình làm nhanh nhất !

làm sao để tick vậy bn

ai nhanh 3 k

đề sai là chắc

a) =155.(1,1+10-1)=155.10,1=1565,5

Vũ Thị Khánh Ly:

(-155) + (-40) + 155 + |-35|

= (-155) + 155 + (-40) + 35

=             0       +         (-5)

=                      (-5)

:3. Học tốt

(-155)+(-40)+155+[-35]

=[(-155)+155]+[(-40)+[-35]]

=0+[-40+35]

=0+(-5)

=(-5)
 

\(\left(-155\right)+\left(-40\right)+155+|-35|\)

\(=\left(-155\right)+\left(-40\right)+155+35\)

\(=\left(-155+155\right)+\left(-40+35\right)\)

\(=0+\left(-5\right)\)

\(=-5\)

2022x(2023-155)-2023x(2022-155)

=2022x2023-2022x155-2023x2022+2023x155

=(2022x2023-2023x2022)+(2023x155-2022x155)

=0+155x(2023-2022)

=155x1=155