Question

1)2,8×(3,52+9,585:4,5) 2)(2,3×1,18-1,419):3,7 3)1,35:(10-9,82)-1:2,5 4)89,92-1,24×(290,4:4,8) В стовпчик!

Answer 1

Here are the expressions you provided, formatted into columns:

1. 2,8 × (3,52 + 9,585 ÷ 4,5)
2. (2,3 × 1,18 - 1,419) ÷ 3,7
3. 1,35 ÷ (10 - 9,82) - 1 ÷ 2,5
4. 89,92 - 1,24 × (290,4 ÷ 4,8)

Please note that in some regions, the decimal separator is represented by a comma (,) instead of a period (.), and the multiplication and division symbols are interchanged compared to some other notations.