6+=12    7+=12   8+=12   9+=12   4+=12

6+=13    7+=13   8++13   5+=13   3+=13

12 – 7 =        12 – 4 =        12 – 9 =       12 – 6 =

13 – 5 =        13 – 9 =        13 – 7 =       13 – 4 =

13 – 76     12 – 85      13 – 93       12 – 57

13–＞6     12–＞5       5+＜12

12–＞9     13–＞8      6+＜11

12–＞7

11 – 3 =           11 – 5 =        11 – 9 =       11 – 10 =

11 – 6 =           5 +6 =          4 +8 =         7 +9 =

11 – 4 =           11 – 2 =         7 +5 =         3 + 9 =

15－9＝。

＋6＝10       9＋＝15       5＋＝15

＋10＝12      7＋＝13       8＋＝16