The crossword solutions for the term 'ABLE TO DO ARITHMETIC' are NUMERATE (8 letters), MULTIPLY (8 letters), ADD (3 letters), and COULD (5 letters). NUMERATE means to count or name numbers in order, while MULTIPLY means to increase a number by itself a certain number of times. ADD means to combine two or more numbers together, and COULD is the past tense of the verb 'CAN, ' which is used to express the ability to do something. All of these words relate to the term 'ABLE TO DO ARITHMETIC, ' as they all describe different ways of performing arithmetic operations.