This GSEB Class 8 Maths Notes Chapter 16 Playing with Numbers covers all the important topics and concepts as mentioned in the chapter.

## Playing with Numbers Class 8 GSEB Notes

→ Maths is a subject full of fun, magic and wonders.

→ A 2-digit number whose tens digit is a and units digit is b can be written as 10a + b.

→ A 3-digit number whose hundreds digit is a, tens digit is b and units digit is c can be written as 100a + 10b + c, where a (≠ 0), b and c are whole numbers.

→ A number is divisible by 2 if the units digit of the number is divisible by 2.

→ A number is divisible by 3 if the sum of digits of the number is divisible by 3.

→ A number is divisible by 5 if the units digit of the number is either 5 or 0.

→ A number is divisible by 9 if the sum of the digits of the number is divisible by 9.

→ A number is divisible by 10 if the units digit is 0.

→ A number is divisible by 11 if the difference of the sums of alternate digits is either 0 or divisible by 11.