1000 + 90 + 10 + 200 + 300 + 80 + 20
= 1000 + ( 90 + 10 ) + ( 200 + 300 ) + ( 80 + 20 )
= 1000 + 100 + 500 + 100
= 1100 + 500 + 100
= 1600 + 100
= 1700
1 000 + 90 + 10 + 200 + 300 + 80 + 20
= 1 000 + ( 90 + 10 ) + ( 200 + 300 ) + ( 80 + 20 )
= 1 000 + 100 + 500 + 100
= 1 100 + 500 + 100
= 1 600 + 100
= 1 700
1000 + 90 + 10 + 200 + 300 + 80 + 20
= 1000 + ( 90 + 10 ) + ( 200 + 300 ) + ( 80 + 20 )
= 1000 + 100 + 500 + 100
= 1100 + 500 + 100
= 1600 + 100
= 1700
1000 + 90 + 10 + 200 + 300 + 80 + 20
= 1000 + ( 90 + 10 ) + ( 200 + 300 ) + ( 80 + 20 )
= 1000 + 100 + 500 + 100
= 1000 + ( 100 + 500 + 100 )
= 1000 + 700
= 1700.
Vậy kết quả là 1700 nhé !
1000 + 90 + 10 + 200 + 300 + 80 + 20
= 1000 + ( 90 + 10 ) + ( 200 + 300 ) + ( 80 + 20 )
= 1000 + 100 + 500 + 100
= 1000 + ( 100 + 500 + 100 )
= 1000 + 700
= 1700.
Vậy kết quả là 1700 nhé !