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十 20以内的进位加法9加几1.图略151510 1313102.11181118171617163.9+3=12 9+5=144.141115101812171316练习十一（1）1.161610 1414102.1316111417151812193.＜＞＞＜4.94 9+4=135.9 9+3=12练习十一（2）1.15181518121712172.1115181413163.＜＝＞4.15311105.9+7=16 9+5=146.949+4=138、7加几1.图略8+4=12 7+6=132.161715 1617153.141412 131617 1113114.＜＞＜ ＝＜＝5.14-4=10 8+3=116.7+3+5=15练习十二（1）1.141514152.略3.7+4=114.141217155.939+3=12练习十二（2）1.7+5=122.从左向右依次：13111216171491510 从左向右依次：15121014816913113.663 7754.7+98+88+910+85.767+6=136、5、4、3、2加几1.5+6=11 4+8=12 6+5=11 8+4=122.12111311121113113.1412124.1311131415125.474+7=11 383+8=11练习十三1.121311 1413121212142.＞＞＜ ＞＞＝ ＜＜＜3.7+7 =144.7+5=12复习（1）1. 7+5=12 5  | 