Question

a) 2 . 31 . 12 + 4 . 6 . 42 + 8 . 27 . 3

b) 36 . 28 + 36 . 82 + 64 . 69 . 64 . 41

 

Answer 1

b) 36.28+36.82+64.69+64.41

= 36.(28+82)+64.(69+41)

=36.110+64.110

=(36+64).110

=100.110

=11000.( phần a mk nghĩ sau )

Answer 2

b) = 36 . (28+82) + 64 . (69+41)

    = 36 . 110 + 64 . 110

    = (36+64) . 110

    = 100 . 110

    = 11000

Answer 3

a, 2 . 31 . 12 + 4 . 6 . 42 + 8 . 27 . 3

= 2 . 31 . 3 . 4 + 4 . 2 .3 . 42 + 2 . 4 . 27 . 3

= 2 . 3 . 4 ( 31 + 42 + 27 )

= 2 . 3 . 4 . 110

= 2640

Answer 4

b) 36 . 28 + 36 . 82 + 64 . 69 + 64 . 41

= 36 ( 28 + 82 ) + 64 ( 69 + 41 )

= 36 . 110 + 64 . 110

= 110 ( 36 + 64 )

= 110 . 100

= 11000

Hok tốt

Answer 5

a)2.31.12+4.6.42+8.27.3

=744+1008+648

=2400

b)36.28+36.82+64.69+64.41

=36.110+64.110

=110.100

=11000

Answer 6

Thanks nghen mấy bạn