Question

Dau coroana!!!!Repedeee!!!!Am nevoie de ex 6

Answer 1

Răspuns:

$a) - 7 \times ( - 11 + 6) - (3 \times ( - 4) \times ( - 2)) - 11 = \\ = - 7 \times ( - 5) - ( - 12 \times ( - 2)) - 11 = \\ + 35 - ( + 24) - 11 = 35 - 24 - 11 = 11 - 11 = 0$

$b) - 2 \times ( - 1) + 6 \times ( - 2) + 50 \div ( - 5) = \\ = + 2 + ( - 12) + ( - 10) = \\ = 2 - 12 - 10 = - 10 - 10 = - 20$

$c) - 40 \div ((( - 7 - 3 \times 4) \div ( - 19) + 4) + 5) + 4 = \\ = - 40 \div ((( - 7 - 12) \div ( - 19) + 4) + 5) + 4 = \\ = - 40 \div ((( - 19) \div ( - 19) + 4) + 5) + 4 = \\ = - 40 \div (( + 1 + 4) + 5) + 4 = \\ = - 40 \div ( + 5 + 5) + 4 = \\ = - 40 \div ( + 10) + 4 = - 4 + 4 = 0$

$d)( |8 - 3 \times | - 2| | + |13 - 5 \times | - 2 | | ) \div | - 5| = \\ = ( |8 - 3 \times 2| + |13 - 5 \times 2| ) \div 5 = \\ ( |8 - 6| + |13 - 10| ) \div 5 = \\ = ( |2| + |3| ) \div 5 = \\ = (2 + 3) \div 5 = 5 \div 5 = 1$