概要:=8-3=15-9=7-5+8=9-5=10+3-6=19-1=8+2=7+5=8-8+8=14+2=5-3+10=9-2=7+7=5+12=16-9=13-8=17-3-7=9+3=12+1=1+7=12-5+7=6+12=3+9=10-4=4+6=13-10=10+3-9=14-5=13-2=5-5=10+3=7+5=3+10-5=7+9=8+6=9+6=7+1=上一页 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] 下一页
口算练习(一)——20以内加减法速算,标签:一年级数学课外辅导大全,http://www.youer8.com8-3=
15-9=
7-5+8=
9-5=
10+3-6=
19-1=
8+2=
7+5=
8-8+8=
14+2=
5-3+10=
9-2=
7+7=
5+12=
16-9=
13-8=
17-3-7=
9+3=
12+1=
1+7=
12-5+7=
6+12=
3+9=
10-4=
4+6=
13-10=
10+3-9=
14-5=
13-2=
5-5=
10+3=
7+5=
3+10-5=
7+9=
8+6=
9+6=
7+1=
上一页 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] 下一页