文档介绍：× × ×96 ×
× × × ×
× × × ×
× × × ×83
×61 × × 57×
× × × ×
× × ×85 ×
×8 × × ×96
× × × 5×
× × × ×
× × ×55 ×
× ×83 ×61 ×
× 57× × ×
× × × ×
×85 × ×8 3 ×
× × 4× ×
× × ×4 ×
× ×7 × ×
× × × ×
× × × ×
× × × -×
× × × ×
× × × ×
× × × ×9
× 5× × ×
++ = ××4 = ++ = 1×÷6 = -÷ = - = ÷ = × = ÷19 =
+++= (++25)×= 5-×+÷= [+×(-)]÷19= ×+×- = ×99+=
+21÷(-)×= ÷(÷)=
×(÷) = (-)×(-)= +÷(-)= (-)÷ = ×(-÷)= ÷(×)=
+÷(32-) = ×(+÷)= +÷× = ×+÷= (×-)÷ = (1