\(\left(8+9+1+2\right).100\)
\(=20.100\)
\(=2000\)
chuc bn hoc gioi!!
nhae
( 8 + 9 + 1 + 2 ) x 100
= ( 17 + 1 + 2 ) x 100
= ( 18 + 2 ) x 100
= 20 x 100
= 2000
(8+9+1+2)x100
=(17+1+2)x100
=(18+2)x100
=20x100
=2000
(8+9+1+2) x 100
[(8+2)+(9+1)]x100
(10+10)x100
20x100
2000
( 8 + 9 + 1 + 2 ) x 100
= ( 17 + 1 + 2 ) x 100
= ( 18 + 2 ) x 100
= 20 x 100
= 2000
( 8 + 9 + 1 + 2 ) x 100
= ( 17 + 1 + 2 ) x 100
= ( 18 + 2 ) x 100
= 20 x 100
= 2000
( 8 + 9 + 1 + 2 ) x 100
= ( 17 + 1 + 2 ) x 100
= ( 18 + 2 ) x 100
= 20 x 100
= 2000
( 8 + 9 + 1 + 2 ) x 100
= ( 17 + 1 + 2 ) x 100
= ( 18 + 2 ) x 100
= 20 x 100
= 2000
( 8 + 9 + 1 + 2 ) * 100
= 20 * 100
= 2000
( 8 + 9 + 1 + 2 ) x 100
= 20 x 100
= 2000
( 8 + 9 + 1 + 2 ) x 100
= 20 x 100
= 2000