How Many? (Addition and Subtraction of Single Digit Numbers) — Chapter Summary
CBSE · Class 1 · Mathematics
Summary of How Many? (Addition and Subtraction of Single Digit Numbers) for CBSE Class 1 Mathematics. Part of the CBSE Class 1 Mathematics syllabus.
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Overview
Addition means putting groups together to find how many there are in all. Subtraction means taking away to find how many are left. Simple number stories, fingers, dice, shells, marbles, bananas, frogs, balloons, and number strips help show these ideas with small numbers.
Key Concepts
Two groups can be joined
Two groups can be joined to find the total. For example, 4 children and 2 children make 6 children.
More objects can be added
More objects can be added to one group to make a bigger group.
The word make is connected
The word make is connected with + and the word altogether is connected with =.
Two dice are rolled and
Two dice are rolled and the dots on both dice are counted together. The higher total shows the winner.
Different pairs of numbers can make
Different pairs of numbers can make the same total, such as pairs that make 9.
Learning Objectives
- Find the total when two small groups are joined.
- Understand the words make, altogether, total, and sum.
- Use addition and subtraction with small objects and number stories.
- See subtraction as taking away or as jumping back on a number strip.
- Solve simple one-step word problems with single-digit numbers.
Frequently Asked Questions
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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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