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20以内的进位加法,4,(),3,7,2,(),3,1,(),9,4,(),8,(),3,4,1,5,2,5,5,填():,9+()=10 8+()=10,6+()=10 5+()=10,1,2,3,4,5,7+()=10,2+()=10,8,想:7加()得10。,3,想:7加()得10。,3,3,4,10,4,14,14,10加()得()。,想:6加()得10。,4,想:6加()得10。,4,4,3,10,3,13,13,10加()得()。,9+4=13,10,7+6=13,8+3=11,1,想:6加()得10。,4,想:8加()得10。,2,想:8加()得10。,2,复习,想:8加()得10。,2,复习,想:8加()得10。,2,复习,想:8加()得10。,2,2,4,10,4,14,14,10加()得()。,想一想:,9+4=,6+6=,5+9=,13,12,14,小结:看大数、分小数、凑成十,算得数。,5,4,10,14,1,4,10,14,2、9+1=9+2=9+3=9+4=9+5=9+6=9+7=9+8=9+9=,10,11,12,13,14,15,16,17,18,做一做:1、7+6=8+7=7+3+3=8+2+5=,13,13,15,15,14,15,11,12,13,12,11,13,口算:,