文档介绍：word
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word
20以内加减法练****br/>4+7+9= 20-7-7= 8+7+5= 4+5+10= 1+3+4= 6+4+4= 8-3-4= 3+7+8= 3+6+6= 19-2-4= 13-8-3= 3+9+3= 12-5-7= 17-9-5= 2+9+4= 16-3-9= 2+5+6= 17-6-3= 19-1-2= 9+1+10=
3+9+8= 2+10+7= 20-9-6= 7+9+4= 6+5+6= 15-9-2= 3+7+3= 13-4-7= 16-1-3= 14-4-3= 18-9-5= 19-10-7= 5+3+4= 14-1-3= 14-6-3= 18-3-8= 1+7+9= 19-9-10= 9-7-2= 17-5-6=
word
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word
20以内加减法练****br/>4+1+7= 11-6-2= 19-7-4= 17-6-10= 13-3-5= 5+2+3= 9+3+2= 9+5+6= 8+6+3= 7-5-1= 4+4+1= 1+9+1= 4+4+8= 16-7-7= 1+4+1= 1+1+5= 7+2+2= 9+1+2= 10+7+3= 6+3+7=
16-5-8= 1+9+8= 19-4-3= 13-1-6= 5+8+3= 6+8+1= 5-2-9= 5+6+1= 7+5+4= 12-10-1= 17-3-7= 4+7+5= 6-5-1= 4+10+4= 20-1-10= 8-1-6= 19-3-6= 18-8-10= 10+2+3= 2+2+3=
word
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word
20以内加减法练****br/>9+4+2= 3+3+10= 4+8+7= 15-4-8= 4+9+7= 10+3+6= 7+1+5= 14-5-1= 13-1-10= 1+8+4= 7-2-2= 19-9-3= 17-1-3= 15-5-5= 19-8-8= 5+10+1= 11-3-4= 20-3-2= 15-7-5= 19-3-1=
8+3-9= 5+8-9= 9+8-9= 8+2-10= 6+4-7= 8+10-7= 10+7-8= 7+8-3= 7+7-7= 4+7-6= 8-2+10= 7+8-10= 7-1+6= 2+10-7= 7+4-4= 10