Question

Và : 2x=102

Answer 1

`58 . 75 + 58 . 50 - 58 . 25`

`=58 . (75 + 50 - 25)`

` =  58 . 100`

` = 5800`

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` 27 . 39 + 27 . 63 - 2 .27`

` = 27 . (39 + 63 - 2)`

` = 27 . 100`

` = 2700`

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` 35 . 23 + 35 . 41 + 64 . 65`

` = 35 . ( 23 + 41) + 64 . 65`

` = 35 . 64 + 64 .65`

` = 64 . ( 35 + 65)`

` = 64 . 100`

` = 6400`

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`125 . 98 - 125 . 46 - 52.25`

` = 125 . ( 98 - 46) - 52.25`

` = 125 . 52 - 52 . 25`

` = 52 . (125 - 25)`

` = 52 . 100`

` = 5200`

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` 87 . 23 + 13 . 93 + 70 . 87`

` = 87 . 23 + 70 . 87 + 13 . 93`

` = 87 . (23 + 70) + 13 . 93`

` = 87 . 93 + 13. 93`

` = 93 . ( 87 + 13)`

` = 93 . 100`

` =9300`

__________________________________

`#BaoL i nh`

Answer 2

`58 . 75 + 58 . 50 - 58 . 25`

`=58 . (75 + 50 - 25)`

` =  58 . 100`

` = 5800`

________________________

` 27 . 39 + 27 . 63 - 2 .27`

` = 27 . (39 + 63 - 2)`

` = 27 . 100`

` = 2700`

______________________

` 35 . 23 + 35 . 41 + 64 . 65`

` = 35 . ( 23 + 41) + 64 . 65`

` = 35 . 64 + 64 .65`

` = 64 . ( 35 + 65)`

` = 64 . 100`

` = 6400`

_________________________

`125 . 98 - 125 . 46 - 52.25`

` = 125 . ( 98 - 46) - 52.25`

` = 125 . 52 - 52 . 25`

` = 52 . (125 - 25)`

` = 52 . 100`

` = 5200`

__________________________

` 87 . 23 + 13 . 93 + 70 . 87`

` = 87 . 23 + 70 . 87 + 13 . 93`

` = 87 . (23 + 70) + 13 . 93`

` = 87 . 93 + 13. 93`

` = 93 . ( 87 + 13)`

` =9300`

 

`#LeMichael`

Answer 3

58x75+58x50−58x25

=58x(75+50−25)

= 58x100

=5800

 

27x39+27x63−2x27

=27x(39+63−2)

=27x100

=2700

 

35x23+35x41+64z65

=35x(23+41)+64x65

=35x64+64x65

=64x(35+65)

=64x100

=6400

 

125x98−125x46−52x25

=125x(98−46)−52x25

=125x52−52x25

=52x(125−25)

=52x100

=5200

 

87x23+13x93+70x87

= 87x23+70x87+13x93

=87x(23+70)+13x93

=87x93+13x93

=93x(87+13)

=93x100

=9300

Answer 4

 

 

 

=52x100