**Selina Publication Solutions- Chapter 9 Playing with Numbers** **– 6th ICSE Board**

In this chapter of ** Playing with Numbers**, we will understand the concepts of Consolidating the sense of numberness up to 5 digits, size, estimation of numbers, Identifying smaller and larger etc.

- Simplification of brackets,
- Multiples and factors,
- divisibility rule of 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 (All these through observing patterns. Children would be helped in deducing some and them asked to derive some that are a combination of the basic patterns of divisibility)
- Even/Odd and prime/composite numbers, co–prime numbers, prime factorization, every number can be written as products of prime factors.
- All the above concepts are to be embedded in children’s contents so that it brings out the significance and provide motivation to the child for learning these ideas.

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