What is the other name of Application software?

What will be the value of the given expression after the following interchanges?

Expression: 324 + 22 - 7 X 4 ÷ 36 - 28

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

If A # B means A - B, A @ B means A ÷ B, A * B means A + B and A % B means A X B, then what is the value of ‘140 @ 28 * 22 % 4 # 30?

Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation.

128 * 4 * 12 * 3 * 8 = 20

Select the correct combination of mathematical signs to replace the * signs and balance the given equation.

5 * 15 * 320 * 2 * 45 = 190

If 'S' stands for '+', 'T' stands for '-', 'U' stands for '×', 'V' stands for '÷', what will come in the place of (?) in the following equation?

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

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