文档介绍：一年级数学上册口算竞赛题
一、进位、退位练****br/>13-6= 5+7= 13-5= 4+8= 12-9= 2+9= 12-8= 9+3= 13-4= 9+6= 12-7= 8+3= 12-4= 9+2= 11-7= 9+7= 11-8= 8+4= 11-9= 9+4= 12-3= 9+8= 11-6= 8+5= 11-3= 9+5= 11-5= 9+9= 11-2= 8+6= 11-4= 5+6= 13-7= 4+7= 14-5= 3+9= 14-8= 6+9= 15-7= 5+9= 16-7= 3+8= 17-8= 8+7= 17-9= 7+5= 16-8= 7+9= 15-8= 8+8= 14-9= 7+6= 14-6= 6+5= 13-8= 8+9= 13-9= 7+7= 14-7= 6+6= 15-6= 7+4= 15-9= 7+8= 16-9= 6+7= 18-9= 6+8= 13-5= 4+9= 16-8= 5+8= 11-4= 5+9= 13-6= 6+5= 12-5= 9+8= 14-8= 4+9= 15-7= 8+3= 16-9= 7+6= 12-7= 5+7= 13-4= 6+5= 15-6=
二、连加连减运算。
3+4+10= 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= 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= 4+4+8= 16-7-7= 10+7+3= 6+3+7= 16-5-8= 1+9+8= 19-4-3= 13-1-6= 5+8+3= 6+8+1= 15-2-9= 5+6+1= 7+5+4= 12-10-1= 17-3-7= 4+7+5= 4+10+4= 20-1-10= 19-3-6= 18-8-10= 10+2+3=
三、()填入合适的数。
( )+3=11 16-( )=8 ( )-6=8 ( )+4=13
( )-6=8 ( )+5=13 6+( )=11 12-( )=7
( )-4=9 9+( )=14 ( )+6=12 ( )-8=4
13-( )=4 ( )+3=12 7+( )=16 ( )-6=5
( )-4=7 ( )+8=13 14+( )=19 ( )+5=12
6+( )=14 7+( )=16 ( )+9=13 ( )+8=12
7+( )=13 6+( )=11 ( )+5=11 9+( )=17
8+( )=17 4+( )=13 ( )+7=14 ( )+3=11
( )+6=12 ( )+6