Decimals are the natural extension of the Indian place value system to represent decimal fractions such as 1/10, 1/100, 1/1000, etc.

27.53 consists of 2 Tens, 7 Units (Ones), 5 Tenths, and 3 Hundredths.

9.5 × 5 = 47.5.

Move the decimal point of the number left by one place.

123 ÷ 10 = 12.3.

Yes, for example, 0.5 × 2 = 1 is a natural number.

Convert the divisor into a whole number by multiplying by 10, 100, etc., and adjusting the dividend accordingly.

12.5 × 7.5 = 93.75 km.

Area = 5.7 × 13.3 = 75.81 sq cm.

You move the decimal point to the left and count the zeros.

3.9 ÷ 10 = 0.39.

Move the decimal point to the left for each zero in the divisor.

The result is 331.

It results in a repeating decimal: 3.333...

An extra day is added every four years but not in every hundredth year, unless divisible by 400.

The quotient is always less than the dividend when the divisor is greater than 1.

2/5 = 0.4.

0.06 ÷ 5 = 0.012.

Total decimal places in the product equals the sum of the decimal places of the multiplicands.