A Day at the Beach (Counting in Groups) — Chapter Summary
CBSE · Class 2 · Mathematics
Summary of A Day at the Beach (Counting in Groups) for CBSE Class 2 Mathematics. Part of the CBSE Class 2 Mathematics syllabus.
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Overview
Counting in groups makes large numbers easier to understand. Objects like shells, chikoos, oranges, bananas, and blocks can be arranged in tens. Numbers can be split into tens and ones, such as 73 as 70 and 3, or 7 tens and 3 ones. A number can also be compared with another number by checking which
Key Concepts
Objects can be counted faster by
Objects can be counted faster by making groups of the same size, especially groups of ten.
A two
A two-digit number can be split into tens and ones. For example, 73 is made up of 70 and 3, or 7 tens and 3 ones.
Chikoos can be placed in trays
Chikoos can be placed in trays of ten. Blocks can be seen as ten strips and units.
A group of ten shells
A group of ten shells and one shell can be shown with tens and ones cards. A total of 31 shells is formed in this way.
Numbers can be compared by checking
Numbers can be compared by checking tens first and then ones. For example, 29 is more than 20, and 27 oranges are less than 72 oranges.
Learning Objectives
- Understand counting in groups instead of one by one
- Recognize tens and ones in two-digit numbers
- Group objects into trays, bundles, or sets of ten
- Compare two-digit numbers using more and less
- Read simple number meanings in real-life situations
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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