概要:17-8=17+3=10+3=16-12=2-7+8=8-5=6+2=17-15=7+1=12-4=15-8=12-11=10-5-5=13-7=8-1=15-7=4+6=4+9=10+6+4=15-10=1+7=8+3=18-9=15-7=11-9=7-2=8+8=11-6=10+8+2=( )+3=104+( )=92+( )=3( )-2=8( )-5=64+( )=64+( )=514-( )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.com17-8=
17+3=
10+3=
16-12=
2-7+8=
8-5=
6+2=
17-15=
7+1=
12-4=
15-8=
12-11=
10-5-5=
13-7=
8-1=
15-7=
4+6=
4+9=
10+6+4=
15-10=
1+7=
8+3=
18-9=
15-7=
11-9=
7-2=
8+8=
11-6=
10+8+2=
( )+3=10
4+( )=9
2+( )=3
( )-2=8
( )-5=6
4+( )=6
4+( )=5
14-( )
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