文档介绍：: .
× ×
× × × ×
× × × ×
× × × ×
× × × ×
× × × ×× × × ×9
× 5× × ×
×96 × ×66 ×
× 15× × ×
× × × ×
×= ×= ×103= ×57=×94= ×= ×= ×=
×3= ×= ×= ×97=
×= 56×= ×= ×=
×702= ×16= ×4= ×=
×= ×25= ×= 27×=
×45= ×= ×14= 86×=×= 21×= ×8= ×25=
×32= ×= ×= ×=
×= ×= ×27= ×=
×= ×= ×= ×45=
×= ×= ×= ×=
×= ×= ×= ×=87×10= 84×13= ×= ×=
×86= ×27= ×90= ×54=
84×= –= ÷3= 15+=
×= 328÷41＝ 645÷82＝ 282÷32＝
×72＝ 412÷53＝