1) 7*(-3)-4*2+3*(-5)
2)-2*(-7)+44*(-11)-78:(39)
3)4*(-4)-13*(-2)-15:5
4) 6-[7*(-2)-(2+5)]
5) {4-7)*(-3)-20*(-2)
6)-40:[-4*(-3)-5*(7-3)
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1)
-21-8-15=-44
2)
14-484-2=-472
3)
-16+26-3=7
4)
6+21=27
5)
9+40=49
6)
-40:(12-20)=-40: (-8)=5
1) 7*(-3)-4*2+3*(-5)= -21-8-15= -44
2) -2*(-7)+44*(-11)-78:(39)=14-484-2=14-486=-472
3) 4*(-4)-13*(-2)-15:5= -16+26-3=7
4) 6-[7*(-2)-(2+5)]= 6-[-14-7]=6+21=27
5) {4-7)*(-3)-20*(-2)=-3*-3+40=9+40=49
6) -40:[-4*(-3)-5*(7-3)=-40:[12-5*4]=-40:12-20=-40:-8=5