80÷40 = 100÷20 = 100÷4 =
240÷40 = 920÷4 =300÷60=
64÷2 = 64÷4 = 50÷5 =
60÷8 = 96÷4 = 90÷6 =
400+80 = 400?80 =40×80 =
400÷80 = 48÷16 =96÷24 =
80÷40 = 100÷20 = 100÷4 =
240÷40 = 920÷4 =300÷60=
64÷2 = 64÷4 = 50÷5 =
60÷8 = 96÷4 = 90÷6 =
400+80 = 400?80 =40×80 =
400÷80 = 48÷16 =96÷24 =