Ответ:\( 3.2 + 1.8 = 5.0 \)\( 3 + 1.08 = 4.08 \)\( 5.7 - 4 = 1.7 \)\( 6.3 - 2.7 = 3.6 \)\( 0.3 - 0.27 = 0.03 \)