Enter your answers in the boxes then click on "Check" button to open a new window to see how well you have done:

2 + 2		3 + 2		4 + 2		5 + 2		6 + 2		7 + 2
2 + 3		3 + 3		4 + 3		5 + 3		6 + 3		7 + 3
2 + 4		3 + 4		4 + 4		5 + 4		6 + 4		7 + 4
2 + 5		3 + 5		4 + 5		5 + 5		6 + 5		7 + 5
2 + 6		3 + 6		4 + 6		5 + 6		6 + 6		7 + 6