Question

пожалуйста помогите

Answer 1

86*100-600=8000
18000:100-80=10
103000:10-300=10000
67000:100+30=700
(29999+1):1000=31000
9700*100-9000=961000

Answer 2

67 000:100+30=670+30=700.) 29999+1:1000=30000:1000=30) 9700•100-9000=970000-9000=961000