1.) Copiati si completati :
a) (-17)×......=-17
b)(-17)×......=+17
c)(-8)×.....=+40
d)(+18)×.......=-90
e)......×(-6)=+54
f).......×13=-65

2.)Calculati :
a)(+4)×(+5)=
b)(-3)×(-6)=
c)(-12)×(+3)=
d)2×(-23)=
e)(-8)×0=
f)(-24)×0×(+12)=
g)(-1)×(10001)=

3.)Copiati si completati :
a)(-4)×......=(-12)
(-12):(-4)=......
b)(+8)×......=(-72)
(-72):(+8)=.......
c)......×(-15)=+60
(+60):(-15)=......
d)........×(+13)=+169
(+169):(+13)=........
e)(-29)×.........=-29
(-29):(-29)=.......
f)(+35)×.........=-35
(-35):(+35)=.......
Va rog ajutor. Dau coroana! Please help! ❤❤❤❤