Question

8 + 1 + 9 + 2 =

ai k mình , mình k lại

Answer 1

\(8+1+9+2=20\)

Answer 2

\(8+1+9+2=20\)

Answer 3

8 + 1 + 9 + 2 = 20

Answer 4

20 nha bn

K mình nha!

Answer 5

bằng 20 nha

Answer 6

8 + 1 + 9 + 2 = 20

Answer 7

8 + 1 + 9 + 2

= ( 8 + 2 ) + ( 1 + 9 )

= 10 + 10

= 20

k nha

Answer 8

8 + 1 + 9 + 2
Cách 1:
8 + 1 + 9 + 2
= 9 + 9 + 2
= 18 + 2
= 20
Cách 2:
8 + 1 + 9 + 2
= ( 8 + 2 ) + ( 9 + 1 )
= 10 + 10
= 10 x 2
= 20

Answer 9

= 20

tíck mik nha mọi người !!!

Answer 10

8 + 1 + 9 + 2= 20

Answer 11

8+1+9+2=20

Answer 12

8+1+9+2

=9+9+2

=18+2

=20

Answer 13

8 + 1 + 9 + 2  = 20

Answer 14

20 nhé bạn

Answer 15

20

chuan cmnr!!:)

Answer 16

8 + 1 + 9 + 2 = 20

Answer 17

8 + 1 + 9 + 2 = 20

Answer 18

8 + 1 + 9 + 2 = 20

Answer 19

8+1+9+2

=(8+2)+(9+1)

=10+10

=20

kick mình nha

Answer 20

8 + 1 + 9 + 2 = 20

Ủng hộ nha

Answer 21

8+1+9+2=20