Решите примеры (58+89)-40=? 50+(67+80)=?

Question

Решите примеры (58+89)-40=? 50+(67+80)=?

Answer 1

1) (58+89)-40=147-40 = 107. 2) 50+(67+80)=50+ 147 = 197.

Answer 2

1)=147-40=107 2)=50+147=197