练 习 四,北师大版一年级数学上册课件,9+4=,8+7=,7+9=,9+5=,7+5=,8+6=,13,15,16,14,12,14,算一算，说一说。,8+5=,13,5+8=,13,9+6=,15,6+9=,15,7+4=,11,4+7=,11,6+6=,12,6+7=,13,6+5=,11,7+7=,14,7+6=,13,7+8=,15,8+8=,16,8+7=,15,8+9=,17,连一连。,7 + 4,7 + 5,9 + 6,6 + 6,8 + 8,7 + 6,8 + 7,8 + 3,8 + 4,9 + 7,8 + 5,9 + 3,11,12,15,12,16,13,15,11,12,16,13,12,7+3=,7+4=,7+5=,7+6=,7+7=,7+8=,8+2=,8+3=,8+4=,8+5=,8+6=,10,11,12,13,14,15,10,11,12,13,14,你发现了什么？,填空。,7,8,9,4,8,6,7,5,15,17,13,12,14,13,12,8+3=,3+5=,6+9=,7+6=,76=,8+7=,5+8=,85=,7+9=,5+9=,6+5=,5+7=,11,8,15,13,1,15,13,3,16,14,11,12,一共有几只？,6,+,7,13,一共有几只？,9,+,6,15,填数。,9,9,3,6,8,6,
