Question

Tính bằng cách thuận tiện nhất 

8,12 x 6 + 16,24 x 4 - 4,06 x 8

Answer 1

2*4.06*6+4*4.06*4-4.06*8

=4.06*(2*6+4*4-8)

=4.06*20=81.2

Answer 2

8,12*6+8,12*2*4-8,12*1 :2*8

=8,12*(6+2-1):2*8

=8,12*7:2*8

=227,36

NHỚ K NHA

Answer 3

8,12 x 6 + 16,24 x 4 - 4,06 x 8

= 8,12 x 6 + 8,12 x 2 x 4 - 4,06 x 2 x 4

= 8,12 x 6 + 8,12 x 8 - 8,12 x 8,12 x 4

= 8,12 x ( 6 + 8 - 4 )

= 8,12 x 10

= 81,2

Answer 4

  8,12 x 6+16,24 x 4 - 4,06 x 8

=4,06 x 12 +4,06 x 16 - 4,08 x 8 

=4,06 x [ 12 +16 - 8 ]

= 4,06 x 20

= 4,06 x 2 x 10

= 8,12 x 10 

= 81,2 

Answer 5

8,12 x 6 + 16,24 x 4 - 4,06 x 8

= 8,12 x 6 + 8,12 x 2 x4 - 4,06 x 2 x4 

= 8,12 x 6 + 8,12 x 8 - 8,12 x 8,12 x 4

= 8,12 x ( 6 + 8 - 4 )

= 8,12 x 10 

= 81,2