1.Make exercises yourself.

There were 13 sausages in the bowl.
I ate 2.
I baked 16 cakes.I ate 5.
1 3 - 2 =    
             
I had 18 apples.
I ate 4.
I did 14 sandwiches
I ate 1.
             
             

2.Subtraction.

14 - 13 -  1 = .......
14 - 11 -  2 = .......
14 - 13 -  0 = ......
14 - 12 -  1 = ......		 16 - 15 -  1 = ........
16 - 12 -  2 = ........
16 - 14 -  1 = ........
16 - 11 -  2 = ........		 19 -10 - 3 - 2 = ....
17 -10 - 1 - 2 = ....
15 -10 - 2 - 3 = ....
18 -10 - 4 - 1 = ....