6m: Use variables as counters in iterative programs

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assignmentstoring a value in a variable
decrementdecreasing the value stored in a variable by 1
incrementincreasing the value stored in a variable by 1
indexa variable that is used in a while or for loop to keep track of of how many times the loop has repeated
iterationrepeating lines of code multiple times
variablea named memory location which can store a value which may change as a program runs
variable identifierthe name of a variable which describes the value it stores
variable valuethe data stored in a variable
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