Answer: 770
Step-by-step explanation:
It would= 10 x 77 and 77 x 10 it=770 because you always add a zero like this.
7 x 10=70
70 x 10=700
700 x 10=7,000
7,000 x 10=70,000
Or another example take 8
8 x 10=80
8 x 100=800
8 x 1,000=8,000
8 x 10,000=80,000
Hope it helps have a great day:)
