8.56*98+856*0.02
=8.56*98+8.56*100*0.02
=8.56*98+8.56*2
=8.56*(98+2)
=8.56*100
=856
0.625*101-62.5
=0.625*101-0.625*100
=0.625*(101-100)
=0.625