Odpowiedź:
a)
6 - 14 = - 8
17 - 30 = -13
15 + (-7) = 15-7 = 8
4 + (-9) = 4-9 = -5
b)
-12 + 8 = -4
-9 + 15 = 6
-9 + 20 = 11
-11 + 9 = -2
c)
4 - (-15) = 4+15 = 19
6 - (-9) = 6+9= 15
-8 -(-2) = -8+2 = -6
-1 - (-13) = -1+13 = 12
d)
-4-11 = -15
-10-16 = -26
-3 + (-8) = -3-8 = -11
-12 + (-5) = -12-5 = -17
Szczegółowe wyjaśnienie:
