概要:( )-5=2( )-5=310-( )=4( )+7=84+( )=7( )-4=13( )-3=10( )-5=1020-( )=186+( )=128+( )=19( )+6=1514-( )=716-( )=7( )-2=1420-( )=10( )-5=38+( )=13( )-0=12( )-6=5( )-4=314-( )=3( )-4=7( )-4=6( )+4=814-( )=817-( )=7( )-6=11( )+6=15( )+3=56+( )=15( )-4=3( )-6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.com( )-5=2
( )-5=3
10-( )=4
( )+7=8
4+( )=7
( )-4=13
( )-3=10
( )-5=10
20-( )=18
6+( )=12
8+( )=19
( )+6=15
14-( )=7
16-( )=7
( )-2=14
20-( )=10
( )-5=3
8+( )=13
( )-0=12
( )-6=5
( )-4=3
14-( )=3
( )-4=7
( )-4=6
( )+4=8
14-( )=8
17-( )=7
( )-6=11
( )+6=15
( )+3=5
6+( )=15
( )-4=3
( )-6
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