# Addition and subtraction

To 10

• Addition

• Subtraction

• Addition and subtraction

From 10 to 20

• Addition

• Subtraction

• Addition and subtraction

To 20

• Addition

• Subtraction

• Addition and subtraction

To 100

• Addition and subtraction №1

• Addition and subtraction №2

• Addition and subtraction №3

3 + 3 =

1 + 5 =

5 + 4 =

1 + 7 =

8 + 2 =

6 + 4 =

5 + 5 =

6 + 2 =

2 + 1 =

6 + 1 =

1702292608859.9954
1
*Tests to test the knowledge of addition and subtraction in the range of 10, 20 and 100*