1) 2³ ÷ 2¹ = 2^(3-1) = 2² = 4
2) 3² ÷ 2⁴ = 9 / 16
3) 4.42 + (2.5)³ = 4.42 + 15.625 = 20.045
4) 30 – (3.6)² = 30 - 12.96 = 17.04
5) 3² * (1 1/3)² = 9 * (4/3)² = 9 * 16/9 = 16
6) (3 2/3)² ÷ (1 1/4)³ = (11/3)² / (5/4)³ = (121/9) / (125/64) = (121/9) * (64/125) = 7744/1125 = 6 104/1125