The latest edition of 2012 textbook, seventh grade volume I mathematics evaluation manual, Chapter II rational number section and thinking, p38 [content and method], the first question of knowledge and structure box filling, the first session P40 [inquiry and thinking] the sixth question of operation calculation and research, the second session p42 inquiry and thinking, the sixth question of binary

The latest edition of 2012 textbook, seventh grade volume I mathematics evaluation manual, Chapter II rational number section and thinking, p38 [content and method], the first question of knowledge and structure box filling, the first session P40 [inquiry and thinking] the sixth question of operation calculation and research, the second session p42 inquiry and thinking, the sixth question of binary

No questions