練習九,表內乘法（一）,義務教育人教版二年級上冊,4,1.,5,4,555520,5420,4520,6,3,66618,6318,3618,1.,（1）每組畫2個，畫3組。,2226,236,326,（2）每組畫4個，畫5組。,4444420,4520,5420,3.把加法算式改寫成乘法算式。,4,3,6,4,2,5,3,4,4,6,5,2,或 34