Question

помогите пж ( расписывая

Answer 1

1.
$3.9 + 4 + 6.9 + (5.9 - 2.9) - (10.7 - 4.9) = 3.9 + 4 + 6.9 + 2.9 - 5.74 = 11.36$
2.
$6.3 - 5.5 - (45.3 - 45.27) +( 3.8 + 1.16) = 6.3 - 5.5 - 0.03 + 6.96 = 7.46$
3.
$23 - (1.3 + 4.39 + 7.89 - 2.3) + (4.8 - 3.8) = 23 - 11.28 + 1 = 12.72$
4.
$23 + (15.3 - 7.39) + (4.44 - 3.34) - (5 - 3.7) = 23 + 7.91 + 1.1 - 1.3 = 30.71$