Question

递等式计算：1.25*(0.4+2.8)*2.5;(3.61+6.39-6.39+3.61)/2

Answer 1

计算: 1.25*(0.4+2.8)*2.5 (3.61+6.39-6.39+3.61)/2应用题:1.25*80=2000 2.2-1.8=0.2

=1.25*3.2*2.5 =7.22/2 2000/20=100 7.2/2=3.6

=10 =3.61 3.6*0.2=0.72