Decimal figures are numbers that are expressed in terms of a base 10 system, which is the most commonly used system for representing numbers. The term 'decimal figures' refers to any number that has a decimal point and is composed of digits to the right and left of the decimal point. The solution to the crossword for the term 'decimals figures' is 'TENTHS, ' which refers to a fractional part of a whole number that is divided into ten equal parts.