17*25 + 17*32 + 83*25 + 83*32

= 17*(25 + 32) + 83*(25 + 32)

= (25 + 32)(17 + 83)

= 57*100

= 5700

\(17.25+17.32+83.25+83.32\)

\(=17.\left(25+32\right)+83.\left(25+32\right)\)

\(=\left(25+32\right)\left(17+83\right)\)

\(=57.100\)

\(=5700\)

17.25 + 17.32 + 83.25 + 83.32 

= 17. ( 25 + 32 ) + 83.( 25 + 32 )

= 17. 57 + 83 . 57 

= 57 . ( 17 + 83 )

= 57 . 100 

= 5700

A=17x32+64x83+36x83+68x17

   A=17x32+17x68+64x83+36x83

A=17x(32+68)+83x(64+36)

A=17x100+83x100

A=100x(83+17)

A=100x100

A=10000

A=17x32+64x83+36x83+68x17

  = 17x32+68x17+ 64x83+36x83

  = 17 x (32 +68) +83x(64+36)

  =  17x100 + 83x100

  =      1700 + 8300

  =             10000

*k cho mình nha

A=17.32+64.83+36.83+68.17

=>17.(32+68)+83.(64+36)

=>17.100+83.100

=>100.(17+83)

=>100.100

=>10000

Học tốt~

`@` `\text {Ans}`

`\downarrow`

`2023 \times 14 + 2023 \times 83+97`

`= 2023 \times (14+83) + 97`

`= 2023 \times 97 + 97`

`= 196231 +97`

`= 196328`

`78 \times 31+78 \times 24+78 \times 17+78 \times 22 \times 72`

`= 78 \times (31+24+17+22 \times 72)`

`= 78 \times (31+24+17+1584)`

`= 78 \times 1656`

`= 129168`

`371 \times 69+371 \times 14+629 \times 83`

`= 371 \times (69+14) + 629 \times 83`

`= 371 \times 83 + 629 \times 83`

`= 83 \times (371+629)`

`= 83 \times 1000`

`= 83000`

`91 \times 51+49 \times 163-49 \times 72`

`= 91 \times 51 + 49 \times (163-72)`

`= 91 \times 51+49 \times 91`

`= 91 \times (51+49)`

`= 91 \times 100`

`= 9100`

`3 \times 12 \times 17 + 4 \times 9 \times 81 + 2 \times 6 \times 6`

`= 9 \times 4 \times 17 + 4 \times 9 \times 81 + 4 \times 9 \times 2`

`= 9 \times 4 \times (17+81+2)`

`= 36 \times 100` 

`= 3600`

`42 \times 17 + 58 \times 83 \times 42 \times 83 + 42 \times 83 + 17`

`= 17 \times (42+58) + 42 \times 83 \times (58 \times 83 +1)`

`= 17 \times 100 + 3486 \times 4815`

`= 1700 + 16785090`

`= 16786790`

=-17*83+18*83

=[-17+18]*83

=1*83

83

= (-17)*83 + 18*83

= [(-17) - (-18)] * 83

= 1 * 83

= 83

= -17 * 83 + 18 * 83

= 83 * (-17 + 18)

= 83 * 1

= 83

HỌC TỐT =))

a) 24 + 17 + 26 = (24 + 26) + 17

                         = 50 + 17

                         = 67

b) 80 + 310 + 120 + 90 = (80 + 120) + (310 + 90)

                                    = 200 + 400

                                     = 600

c) 34 + 140 + 60 + 16 = (34  + 16) + (140 + 60)

                                  = 50 + 200

                                  = 250

\(83\times14+27\times17+83\times13\)

\(=83\times\left(14+13\right)+27\times17\)

\(=83\times27+27\times17\)

\(=\left(83+17\right)\times27\)

\(=100\times27\)

\(=2700\)

Chúc bạn học tốt

$83\times 14+27\times 17+83\times 13$

$=83\times \left(14+13\right)+27\times 17$

$=83\times 27+27\times 17$

$=\left(83+17\right)\times 27$

$=100\times 27$

$=2700$

Chúc bạn học tốt

$83\times 14+27\times 17+83\times 13$

$=83\times \left(14+13\right)+27\times 17$

$=83\times 27+27\times 17$

$=\left(83+17\right)\times 27$

$=100\times 27$

$=2700$

Chúc bạn học tốt