小学一年级奥数题:小学一年级口算题之二

03-16 13:37:46 | http:/www.youjiao51.com | 125次 | 奥数题库

7 + 6 =       5 + 9 =         8 + 7 =          5 + 8 =     

7 + 9 =       9 + 8 =         5 + 7 =          8 + 4 =      

9 + 3 =       9 + 9 =         3 + 8 =           6 + 5 =        

7 + 4 =       8 + 8 =          6 + 8 =           2 + 9 =      

7 + 7 =       3 + 7 =          6 + 6 =           6 + 9 =      

8 + 6 =       3 + 8 =          5 + 5 =           7 + 8 =    

12 – 4 =      15 – 6 =      14 – 7 =           11 – 8 =     

14 – 9 =      15 – 7 = 　 15 – 9 =      　16 – 7 =    

13 – 6 =      16 – 9 =       11 – 5 =     　 12 – 8 =      

11 – 7 =      18 – 9 =       17 – 8 =            14 – 8 =   

13 – 7 =      15 – 8 =       14 – 5 =            11 – 9 =   

17 – 9 =      17 – 9 =       11 – 5 =            13 – 8 =