Numeric entries can be read by the system in the following styles:

• Optional thousands separators can be used, so that 1,234 and 1234 will both be accepted.
• Dollar signs will not be accepted in your answers.
• You can use scientific notation in your answer, for example 2.37E-3 in place of 0.00237.
• You may not enter arithmetic expressions in your answer. Do not enter expressions like 3*7.1; enter the numeric value instead.
• Negative numbers are denoted with a minus sign. For example, -27.5.