1230*18:3+620=72:(560*45:700)=35210:70*28-9706=14000-43600:40*12=

Question

1230*18:3+620=
72:(560*45:700)=
35210:70*28-9706=
14000-43600:40*12=

Answer 1

1.=8000
2.=0,5
3.=-9 688 , 035714285714
4.=-13 909 , 16666666667