{4-[-(6)*(-3)+3]-13}+(-4)={4-(18+3)-13} - 4= 4-18-3+13-4= -8
(-6)[2-(-3)+3(-1)]= -6 * (2+3 -3)= -6* 2= - 12
-12+12*[-(-6):3-3]= -12 +12 (+6:3-3)= -12 +12 (2-3)= -12 +12 *(-1) =-12-12= -24
0,75*(-cztery piąte)-2i jedna druga (-0,24)=
0,75(-cztery piąte)-2i jedna druga *(-0,24)=
- 0,6 -5/2*0,25= - 0,6 - 0,625= -1,225
[dwie piąte-(-0,4):(0,12] :[4-(-44)] =
[2/5+4/10:12/100]:[4+44]=
(2/5+4/10100/12):48=
(2/5+10/3):48=( 6/15 +50/15):48= 56/151/48= 7/90