0,8 x 96 + 1,6 x 2

= 0,8 x 96 + 0,8 x 2 x 2

= 0,8 x (96 + 4)

= 0,8 x 100 = 80

0,8 x 96 + 1,6 x 2

= 0,8 x 96 + 0,8 x 2 x 2

= 0,8 x 96 + 0,8 x 4 

= 0,8 x (96 + 4)

= 0,8 x 100

= 8

0,8x96+1,6x2

=0,8x96+(1,6:2)x2x2

=0,8x96+0,8x2x2

=0,8x(96+2+2)

=0,8x 100

=80

0,8 + 1,6 = 2 

2 x 2 = 4

96 + 4 = 100

0​,8 x 96 + 1,6 x 2 = 0,8 x 96 + 0,8 x 2 x 2

                             = 0,8 x (96 + 4)

                             = 0,8 x 100

                             = 80

= 46,5+(16,8-0,8)= 46,5+ 16= 62,5

(7/11+4/11)+3/4+1

=1+3/4+1

=11/4

giai giup minh nha

476x72+476x28

=476x(72+28)

=476x100

=47 600

476x72+476x28

=476x(72+28)

=476x100

=47 600

\(\frac{7}{11}+\frac{3}{4}+\frac{4}{11}+\frac{1}{4}=\left(\frac{7}{11}+\frac{4}{11}\right)+\left(\frac{3}{4}+\frac{1}{4}\right)=1+1=2\)

\(\frac{7}{11}\)+ \(\frac{3}{4}\) + \(\frac{4}{11}\) + \(\frac{1}{4}\)

= \(\left(\frac{7}{11}+\frac{4}{11}\right)\)+ \(\left(\frac{3}{4}+\frac{1}{4}\right)\)

= 1 + 1

= 2

\(\frac{72}{99}\)- \(\frac{28}{99}\) - \(\frac{14}{99}\)

= \(\frac{72}{99}\) - \(\left(\frac{28}{99}+\frac{14}{99}\right)\)

= \(\frac{72}{99}\) - \(\frac{42}{99}\)

= \(\frac{30}{99}\)

\(\frac{7}{11}+\frac{3}{4}+\frac{4}{11}+\frac{1}{4}\)

\(=\left(\frac{7}{11}+\frac{4}{11}\right)+\left(\frac{3}{4}+\frac{1}{4}\right)\)

\(=1+1=2\)

\(\frac{72}{99}-\frac{28}{99}-\frac{14}{99}\)

\(=\frac{72-24-14}{99}\)

\(=\frac{34}{99}\)

 54x72+54x27+54

=54x72+54x27+54x1

=54x(72+27+1)

=54x100

=5400

Hok tốt!

   54 * 72 + 54 * 27 + 54

= 54 * 72 + 54 * 27 + 54 * 1

= 54 * ( 72 + 27 + 1 )

= 54 * 100

= 5400.

54 × 72 + 54 x 27 + 54

= 54 x 72 + 54 x 27 + 54 x 1

= 54 x ( 72 + 27 + 1 )

= 54 x 100 

= 5400

= 2,345

= 2,345

20,11x96+20,11:0,25

=20,11x96+20,11x4

=20,11x100

=201,1

20, 11×96+20, 11:0, 25

= 20,11 x 96 + 20,11 x 4

= 20,11 x ( 96 + 4 )

= 20,11 x 100

= 2011

   20,11 x 96 + 20,11 : 0,25

= 20,11 x 96 + 20,11 x 4

= 20,11 x (96+4)

= 20,11 x 100

= 2011