An electronic gaming device including a processor and a memory is described. The processor is configured to select a plurality of symbols including a plurality of numerical values and determine that at least one symbol includes at least one numerical value within a predefined range. The processor is also configured to cause display of the at least one symbol in a hidden state and cause display of the plurality of symbols other than the at least one symbol. The processor is also configured to cause display of the at least one symbol to transition between the hidden state and a revealed state wherein when the at least one symbol is displayed in the revealed state the at least one numerical value is displayed and provide an output amount associated with a sum of the plurality of numerical values.