What is a form of non-proportional

Select the correct sequence of mathematical signs that can sequentially replace the ‘#’ signs and balance the given equation.

If % means +, @ means -, # means × and $ means ÷, then what is the value of : 26 % 40 @ 56 $ 7 # 2

(19 % 3) * 11 = 2 and 9 * 3 % 2 = 5. Then, 8 % 4 * 2 = ?

Which two signs should be interchanged to make the following equation correct?

36 – 36 ÷ 9 + 8 × 4 = 8

If '÷' means '+', '+' mean '-', 'x' means '÷' and '-' means 'x', then what will be the value of the given expression:

12 – 6 x 2 + 5 ÷ 9

If ‘A’ means (÷), ‘B’ means (×), ‘C’ means (+), and ‘D’ means (-), then ____ is the value of the expression.

Which two signs should be interchanged to make the given equation correct?

8 – 32 + 20 × 15 ÷ 3 = 271