Question

105:5+400:4
(129-25)×2-20×9
(481-277)×2+(146-98):8

Answer 1

1.
$105 div 5 + 400 div 4 = \ 21 + 100 = 121$
2.
$(129 - 25) times 2 - 20 times 9 = \ 104 times 2 - 180 = \ 208 - 180 = 28$
3.
$(481 - 277) times 2 + (146 - 98) div 8 = \ 204 times 2 + 48 div 8 = \ 408 + 6 = 414$

Answer 2

1) 121
2)28
3)414
это всё