Making 10 (Numbers 10 to 20)
CBSE · Class 1 · Mathematics
Quick revision notes for Making 10 (Numbers 10 to 20) — CBSE Class 1 Mathematics. Key concepts, formulas, and definitions for last-minute revision.
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Key Topics to Revise
1. Dotty Bug and Number Recognition
- Dotty Bug is a ladybug character used for dot counting and number recognition.
- A ladybug has dots on her body.
- Numbers can be seen by looking at dot patterns.
2. Zero and Vanishing Buttons
- Zero is a number.
- Zero is equal in status to one, two, and other numbers.
- Gola monkey wears a shirt with four buttons.
3. Making 10 from 9
- Aastha is celebrating her tenth birthday with halwa and diyas.
- She says, 'I am 9 years old and after 1 more year, I will be 10 years old.'
- The number fact is: 9 and 1 more makes 10.
4. Number Pairs of 5 and 10
- Children can play a finger game with both hands.
- If one child shows some fingers, the other child shows the folded fingers to make the total 5.
- For partitions of 5, if the teacher says 2, the child should respond 3.
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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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