You can use
an addition chart to practice the addition facts.
is how the chart works.
What is 2 + 0?
Find the 2 on the top and the 0 on the side. The place where they meet is the red
box. Since 2 + 0 = 2, a 2 is typed in the red box.
What is 1 + 2?
Find the 1 on the top and the 2 on the side. The green box is where these
numbers meet. Since 1 + 2 = 3, a 3 is typed in the green box.
What is the addition fact
for the purple box?