Respuesta :

Answer:

866

Step-by-step explanation:

She could add the hundreds first: 400+400=800

Then the tens: 50+10=60

Then the ones: 0+6=6

And add them all up: 800+60+6=866

alexisritter13
400+400 = 800
50+10 = 60
0+6 = 6
866