Yes, there are several practical activities and hands-on exercises in CBSE Class 2 Mathematics. These activities are designed to engage students actively in the learning process and help them understand mathematical concepts in a concrete and practical way.

1. Counting and Number Recognition:
- Counting objects: Students can engage in activities where they count objects such as buttons, blocks, or candies, and write down the corresponding numbers.
- Number recognition: Activities can be designed where students identify and match numbers with objects or pictures.

2. Addition and Subtraction:
- Number line: Students can use a number line to practice addition and subtraction by moving forward or backward to represent the operations.
- Manipulatives: Using objects like buttons or blocks, students can physically add or remove them to understand the concepts of addition and subtraction.

3. Measurement:
- Measuring length: Students can use a ruler or measuring tape to measure the length of objects in their surroundings, such as books or pencils.
- Measuring weight: Students can use a balance scale to compare the weight of different objects, such as fruits or toys.

4. Shapes and Patterns:
- Shape recognition: Students can identify and classify various shapes by sorting objects or drawing them.
- Pattern recognition: Students can create and extend patterns using objects or drawings, such as AB, ABB, or ABC patterns.

5. Money:
- Role-play: Students can engage in role-play activities, such as playing as a shopkeeper or customer, to practice counting and exchanging money.
- Counting coins: Students can practice counting different denominations of coins by physically handling them.

6. Time:
- Clock activities: Students can use a clock or a toy watch to practice reading and setting time, both analog and digital.
- Daily routine: Students can create a schedule or timeline of their daily activities to understand the concept of time.

These hands-on activities and exercises not only make learning mathematics enjoyable but also enhance students' understanding of the subject by providing real-life contexts and practical applications.