【240-(0.125×76+百分之12.5×24)×8】÷14=
【240-(0.125×76+0.125×24)×8】÷14=【240-0.125x(76+24)×8】÷14=
【240-1x100】÷14=140
÷14=10
25.1*63+7/250*251+419.672
=251*6.3+0.028*251+419.672
=(6.3+0.028)*251+419.672
=6.328*251+1.672*251
=(6.328+1.672)*251
=8*251
=2008
原式=999999×(111111+777777)
=999999×888888
=(1000000-1)×888888
=888888000000-888888
=888887111112