đề bài là :123.456456-456.123123 thì mình thấy đúng hơn

   ( 98.7676 - 9898.76 ) : .....

= ( 98.76.101 - 98.101.76 ): ....

= 0 : ... = 0

a,123.456456-456.123123=123.456.1001-456.123.1001=0

b,(98.7676-9898.76):(2001,2002...2018)=(98.76.101-98.101.76)::(2001,2002...2018)=0:(2001,2002...2018)=0

sua lai 

A) \(\left(44.52.60\right):\left(11.13.15\right)\)

\(=\left(4.11.4.13.4.15\right):\left(11.13.15\right)\)

\(=4^3\left(11.13.15\right):\left(11.13.15\right)\)

\(=64\)

B) \(123.456456-456.123123\)

\(=123.456.1001-456.123.1001\)

\(=56088.1001-56088.1001\)

\(=1001.\left(56088-56088\right)\)

\(=1001.0\)

\(=0\)

C)  \(\left(98.7676-9898.76\right):\left(2001.2002....2020\right)\)

\(=\left(98.76.101-98.101.76\right):\left(2001.2002....2020\right)\)

\(=0:\left(2001.2002....2020\right)\)

\(=0\)

A)  \(\left(44.52.60\right):\left(11.13.15\right)\)

\(=\left(4.11.4.13.4.15\right):\left(11.13.15\right)\)

\(=4\left(11.13.15\right):\left(11.13.15\right)\)

\(=4.1\)

\(=4\)

a) = ( 4.11.4.13.4.15) : ( 11.13.15 )

= ( 64.11.13.15 ) : ( 11.13.15 )= 64

b) 123.456456-456.123123

= 123.456.1001-456.123.1001=0

c) chưa nghĩ ra

nhưng 2 câu a vs b mình làm đúng 100 %

\(=\dfrac{98\cdot76\left(101-101\right)}{2021\cdot2022\cdot...\cdot2030}=0\)

\(\text{(98.7676-9898.76): (2021.2022.2023...2030)}\)

= \(\text{(752 248 - 752 248): (2021.2022.2023...2030)}\)

= \(\text{0 : (2021.2022.2023...2030)}\)

= \(0\)

 \(B=\)\(\left(98.7676-9898.76\right):\left(2021.2022.2023....2030\right)\)

\(=(98.101.76-9898.76):\left(2021.2022.2023....2030\right)\)

\(=\left(9898.76-9898.76\right):\left(2021.2022.2023...2030\right)\)

\(=0:\left(2021.2022.2023....2030\right)\)

\(=0\)

 ( 98.7676-9898.76):(2001.2002.2003...2010)

=0:(2001.2002.2003...2010)

=0

( 98, 7676 - 9898,76 ) : ( 2001 x 2002 x 2003 ... 2010 )

= 0 : ( 2001 x 2002 x 2003 .... 2010 )

= 0 

Đáp án:

(98.7676-9898.76)+(2001.2002.2003....2017)

= ( 98.76.101 - 98.101.76) + (2001.2002.2003....2017)

= 0 + 2001.2002.2003....2017

( 98 . 7676 - 9898 . 76 ) : ( 2021. 2022 . 2023 ... 2030 )

= ( 98 . 76 . 101 - 98 . 101 . 76 ) : ( 2021 . 2022 . 2023 ... 2030 )

= 0 : ( 2021 . 2022 . 2023... 2030 )

= 0.

(98.7676 - 9898.76):(2001.2002.2003. ... . 2013)

= (98.101.76 - 98.101.76) : (2001.2002.2003. ... . 2013)

= 0 : (2001.2002.2003. ... . 2013)

= 0

bang o nha