0×5.16= 9.8+2.6= 502-399=
÷4= × = 20×5=
10﹣6.8= ﹣ = 35×1%= 1.25×24= 5× ÷5× =
0.42= 10÷0.02= 5a×7a= 1÷3= 1﹣1÷6=