Question

Tính hợp lí:

a) 17.93+116.83+17.23

b)125.98-125.46-52.25

Answer 1

a) 17.93+116.83+17.23

=(17.93+17.23)+116.83

=17.(93+23)+116.83

=17.116+116.83

=116.(17+83)

=116.100

=11600

b) 125.98-125.46-52.25

=(125.98-125.46)-52.25

=125.(98-46)-52.25

=125.52-52.25

=52.(125-25)

=52.100

=5200

tk nha!

Answer 2

a) 17 . 93 + 116 . 83 + 17 . 23

= ( 17 . 93 + 17 . 23 ) + 116 . 83

= 17 . ( 93 + 23 ) + 116 . 83

= 17 . 116 + 116 . 83

= 116 . ( 17 + 83 )

= 116 . 100

= 11600

Answer 3

17.93+116.83+17.23=17.(93+23)+116.83=116.17+116.83=116.100=11600.125.98-125.46-52.25=125.(98-46)-52.25=125.52-52.25=(125-25).52=100.52=5200

Answer 4

a) 17.93+116.83+17.23

=17.(93+23)+116.83

=17.116+116.83

=116.(17+83)

=116.100=11600

b)125.98-125.46-52.25

=125.(98-46)-52.25

=125.52-52.25

=52.(125-25)

=52.100=5200

Answer 5

a)17.93+116.83+17.23

=17.(93+23)+116.83

=17.116+116.83

=116.(17+83)

=116.100

=11600.

b)125.98-125.46-52.25

=125.(98-46)-52.25

=125.52-52.25

=52.(125-25)

=52.100

=5200.

Answer 6

a) 17 . 93 + 116 . 83 + 17 . 23

= 17 . (93 + 23) + 116 . 83

= 17 . 116 + 116 . 83

= 116 . (17 + 83)

= 116 . 100

= 11 600

b) 125 . 98 - 125 . 46 - 52 . 25

= 125 . (98 - 46) - 52 . 25

= 125 . 52 - 52 . 25

= (125 - 25) . 52

= 100 . 52

= 52 00

Học tốt nhé bạn Diệu ~!!!!!   ^ - ^

Answer 7

b) 125 . 98 - 125 . 46 - 52 . 25

= ( 125 . 98 - 125 . 46 ) - 52 . 25

= 125 . ( 98 - 46 ) - 52 . 25

= 125 . 52 - 52 . 25

= 52 . ( 125 - 25 )

= 52 . 100 

= 5200