100+50:2+75+200:2+400:2+500
= 100 + 25 + 75 + 100 + 200 + 500
= 100 + 100 + 100 + 200 + 500
= 500 + 500
= 1000
100 + 50 : 2 + 75 + 200 : 2 + 400 : 2 + 500
= 100 + 25 + 75 + 100 + 200 + 500
= 125 + 75 + 100 + 200 + 500
= 200 + 100 + 200 + 500
= 300 + 200 + 500
= 500 + 500
= 1000
100 + 50 : 2 + 75 + 200 : 2 + 400 : 2 + 500
= 100 + 25 + 75 + 100 + 200 + 500
= 125 + 75 + 100 + 200 + 500
= 200 + 100 + 200 + 500
= 300 + 200 + 500
= 500 + 500
= 1000
ok đủ r nhé