Question

ex 4 repede va rog dau coroana

Answer 1

Explicație pas cu pas:

$a)15 + (5 - 3 - 1) + ( - 10 + 2 - 4) = 15 + (2 - 1) + ( - 8 - 4) = 15 + 1 + ( - 12) = 16 - 12 = 4$

$c) ( - 2 + 10) + ( - 7 - 7) = 8 + ( - 14) = 8 - 14 = 6$

$d)( - 12 - 6) + ( - 5 + 9) + (6 - 3) = - 18 + 4 + 3 = - 14 + 3 = - 11$

$b)(5 - 6 + 8) + (2 - 8) = ( - 1 + 8) + ( - 6) = 7 - 6 = 1$