Math Worksheet
Horizontal subtraction using numbers between 1 and 20.
12 - 11
=

 
19 - 18
=

 
20 - 18
=

 
13 - 6
=

 
17 - 16
=

 
18 - 15
=

 
20 - 17
=

 
8 - 7
=

 
8 - 7
=