①37.5-4.58= ②6.9×0.54= ③8.946+7.35=
4.07-1.9= 0.3+0.7= 25×4= 0.84×100= 7.8+8.5=
0.35+1.25= 5.7-4= 360÷18= 125×24= 348+99=
①47×(11+34)-325
②87÷3+54×13
③892-480÷6×5
④870÷(70-4×16)
①12.5+3.79=验算:
②884÷26=验算:
0.1×25×4= 22.9÷2.29= 8×12.5%= 4.5×=
9+1÷10= ++= ÷= (+)×20=