Răspuns :
a) -5×7×-14=-490÷3=163,(3)
b) -1×4×-5×1=-20÷4=5
c)0,4×-2,3×0,5=-0.46÷3=0,15(3)
d) 20×-7×2,5×-4,(6)=1633.(3)÷4=408,(3)
b) -1×4×-5×1=-20÷4=5
c)0,4×-2,3×0,5=-0.46÷3=0,15(3)
d) 20×-7×2,5×-4,(6)=1633.(3)÷4=408,(3)