1.

Adding 2-digit multiples of ten without regrouping

2.

Adding tens and 1-digit numbers without regrouping

3.

Adding without regrouping - Sums less than 20

4.

Adding 2-digit and 1-digit numbers without regrouping

5.

Adding tens and 2-digit numbers without regrouping

6.

Adding 2-digit and 1-digit numbers with regrouping 21-30

7.

Adding 2-digit and 1-digit numbers with regrouping to 100

8.

Adding 2-digit numbers without regrouping

9.

Adding 2-digit numbers with regrouping

10.

Adding tens with regrouping

11.

Adding 2-digit numbers with regrouping tens

12.

Adding 2-digit numbers with regrouping tens and ones