Is 1.3 less than 0.31

NO!!!

To check the size of decimals.

1. Bring both numbers to the same number of decimal places , by placing in sufficient suffix zeroes. Hence

1.30 & 0.31

2. 'Drop ' the decimal point 130 & 31

Clearly 130 is greater than 31 130 > 31

Hence it follows that 1.3 > 0.31