Numbers

1. Add within 100

1.1. Adding a two-digit number and a one-digit number

1.2. Adding a two-digit number and a multiple of 10

1.3. Use models or drawings

2. Solve Real World Problem

2.1. Addition of three whole numbers whose sum is within 20

2.1.1. Use objects

2.1.2. Use drawings

2.1.3. Use equations with symbols for the unknown number

2.2. Addition and subtraction within 20

2.3. Situations of ...

2.3.1. Taking from

2.3.2. Adding to

2.3.3. Putting together

2.3.4. Taking apart

2.3.5. Comparing

3. Adding and Subtracting within 20

3.1. Making ten

3.2. Counting on

3.3. Decomposing a number leading to a 10

4. Counting to 120

4.1. Counting by ones

4.2. Counting by fives

4.3. Counting by tens