Subtraction
8-6
2
Eight minus six is two.
6+2
8
(Six plus two is eight.)
2+2-1
3
(Two plus two minus one is three.)
10-4
(Ten minus four is six.)
5+8
13
(Five plus eight is thirteen.)
3+2-1
4
(Three plus two minus one is four.)
14-9
5
(Fourteen minus nine is five.)
11+9
(Eleven plus nine is twenty.)
5+6-2
9
(Five plus six minus two is nine.)
20-11
9
(Twenty minus eleven is nine.)
12+12
24
(Twelve plus twelve is twenty four.)
20-7+2
15
(Twenty minus seven plus two is fifteen.)
27-13
14
(Twenty seven minus thirteen equals fourteen.)
15+13
28
(Fifteen plus thirteen is twenty eight.)
25-14+8
19
(Twenty five minus fourteen plus eighteen is nineteen.)