(
课件网) 11 13 11 11 17 16 10 10 10 +3=13 +1=11 +6=16 13是怎么来的？ 9 + 2 = 9 + 2 = 1 1 10 11 圈一圈，算一算，说一说。 【课本89页“做一做”第1题】 9 + 8 = 10 1 7 17 9 + 3 = 1 12 2 10 9 + 4 = 13 9 + 2 = 11 9 + 8 = 17 9 + 3 = 12 1 3 10 1 1 10 1 7 10 1 2 10 9 + + = 13 9 + + = 11 9 + + = 17 9 + + = 12 12 12 15 15 18 18 9 + 1 + 2 = 9 + 3 = 9 + 1 + 5 = 9 + 6 = 9 + 1 + 8 = 9 + 9 = 10 10 10 9+ 4 1.摆卡片 2.看算式，想得数，拿卡片 9+ 6 9+ 2 9+ 9+ 6 9+ 2 9 + 6 =15 9 + 2 =11 9+ 8 9 + 8 =17 9+ 4 9 + 4 =13 9+ 7 9 + 7 =16 9+ 3 9 + 3 =12 9+ 5 9 + 5 =14 9+ 9 9 + 9 =18 9 + 2 =11 9 + 3 =12 9 + 4 =13 9 + 5 =14 9 + 6 =15 9 + 7 =16 9 + 8 =17 9 + 9 =18 9 + 2 =11 9 + 3 =12 9 + 4 =13 9 + 5 =14 9 + 6 =15 9 + 7 =16 9 + 8 =17 9 + 9 =18 9 + 2 =11 9 + 3 =12 9 + 4 =13 9 + 5 =14 9 + 6 =15 9 + 7 =16 9 + 8 =17 9 + 9 =18 2 1 3 2 4 3 5 4 6 5 7 6 8 7 9 8 凑成10 凑成10 9加几 8加几 7加几 6加几
