一年级上册口算练习题
15 - 5= 7 + 9= 11 - 5= 8 + 4=
13 - 3= 6 + 7= 12 - 2= 8 + 5=
14 - 5= 7 + 9= 12 - 8= 8 + 5=
15 - 7= 7 + 8= 13 - 8= 3 + 9=
17 - 8= 7 + 6= 16 - 8= 7 + 6=
10+5-7= 11-6+1= 18-3-15= 4+5-2=
6+1+10= 11-6-5= 6+8-8= 15-14+17=
4+2+0= 15-8+2= 9+9+1= 14-8-6=
3+8+4= 14-14+5= 16-8+1= 3+4-6=
11-6-5= 6-1-0= 17-7-8= 20-3-6=
12-5-4= 17-6-1= 9-4-4= 16-13-1=
19-7-11= 18-13-4= 20-12-5= 15-2-8=
5-3-0= 18-5-8= 16-6-7= 10-1-8=
17+3= 18-7= 0+4= 16-11=
3+17= 19-0= 12-2= 14-13=
19-1= 17-3= 2+7= 10+4=
5-0-4= 2+8+1= 10-7-2= 7+3+1=
6-5-0= 0+10+0= 9-6-3= 6+4+0=
6-1-5= 0+10+1= 10-2-7= 4+6+1=
5-1-3= 1+9+0= 9-2-7= 0+10+0=
9+1+5= 4+6+7= 2+8+6= 3+7+2=