Odpowiedź:
a)
7*(-4) -1 = -28 -1 = -29
7*5 - 1 = 35 -1 = 34
7*0 - 1 = 0 -1 = -1
b)
6-3 = 3
6 - (-2) = 6+2 = 8
6-0 = 6
c)
5 (9-5) = 5 * 4 = 20
8 (9-8) = 8*1 = 8
-3 (9-<-3>) = -3 *12 = -36
d)
8- 4*(3) = 8- 12 = -4
8-4*(-3) = 8- (-12) = 20
8-4*(1/4) = 8-1 = 7