Class 1 (CBSE) • MathematicsChapter 5: How Many?⭐ Topic 1
Counting Numbers up to 20
Learning to count and recognise numbers from 10 to 20.
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Numbers from 10 to 20 have special names: ten, eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen, and twenty. Some of these names, like 'eleven' and 'twelve', do not follow an obvious pattern, so we must remember them carefully.
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Remember these!
- Numbers from 10 to 20 include ten, eleven, twelve... up to twenty.
- Eleven and twelve have special names that don't follow a clear pattern.
- From thirteen onward, number names follow a pattern.
- Counting to 20 helps count bigger groups of objects.
- We can practice counting forward and backward.
- 20 comes right after 19.
- Counting order never changes.
- Knowing numbers up to 20 helps in daily life, like counting age or classroom items.