=440-20x(30-(2x2))
=440-20x(30-4)
=440-20x26
=440-520
=-80
440-20x{30-[2x(5-3)]}
=440-20x{30-[2x2])
=440-20x{30-4}
=440-20x26
=440-520=-80
=440 - 20 x [30 - (2x2)]
=440 - 20 x (30 - 4)
=440 - 20 x 26
=440 - 520
= - 80
=440 - 20 x [30 - (2x2)]
=440 - 20 x (30 - 4)
=440 - 20 x 26
=440 - 520
= - 80