public static void Add()
{
/* This method allows user to practice integer addition in 3 levels of difficulty
* PARAM: None
* RETURN: None
*/
string selected = null;
selected = MathTrainer.DifficultyLevelMenu("ADDITION");
switch (selected)
{
case "1":
EasyAdd();
break;
case "2":
ModerateAdd();
break;
case "3":
HardAdd();
break;
case "4":
break;
}
return;
} //Add()
public static void Multiply()
{
/* This method allows user to practice integer multiplication in 3 levels of difficulty
* PARAM: None
* RETURN: None
*/
string selected = null;
selected = MathTrainer.DifficultyLevelMenu("MULTIPLICATION");
switch (selected)
{
case "1":
EasyMultiply();
break;
case "2":
ModerateMultiply();
break;
case "3":
HardMultiply();
break;
case "4":
break;
}
return;
} //Multiply()
} //EasyDivide()
public static void ModerateDivide()
{
/* This method allows user to practice "moderate" integer division using one random single-digit number
* and one two-digit number, and displays useful statistics at the end.
* PARAM: None
* RETURN: None
*/
bool moreData = true;
string level = "Moderate";
string strQuotientAnswer = null, strRemainderAnswer = null;
int intQuotientAnswer = 0, intRemainderAnswer = 0, correctRemainderAnswer, correctQuotientAnswer, count = 0, userCorrect = 0, userWrong = 0;
Random objRandomNum = new Random();
while (moreData == true)
{
int op1 = objRandomNum.Next(1, 10); //random operand between [1-9]
int op2 = objRandomNum.Next(10, 100); //random operand between [10-99]
trySwapNumbers(ref op1, ref op2); //check if op1 < op2 and if so, swap them
correctRemainderAnswer = op1 % op2;
correctQuotientAnswer = (op1 - correctRemainderAnswer) / op2;
Clear();
//print header and question
Helpers.printHeader("divide", level);
Helpers.printQuestion(op1, op2, ref count, "/");
//get quotient answer and parse it
strQuotientAnswer = getQuotientAnswer();
int.TryParse(strQuotientAnswer, out intQuotientAnswer); //invalid data is converted to answer=zero
//get remainder answer and parse it
strRemainderAnswer = getRemainderAnswer();
int.TryParse(strRemainderAnswer, out intRemainderAnswer); //invalid data is converted to answer=zero
//check answer
checkAnswer(intQuotientAnswer, intRemainderAnswer, correctQuotientAnswer, correctRemainderAnswer, ref userCorrect, ref userWrong);
//ask user if they want another problem
moreData = Helpers.checkProceed("division", level);
}
MathTrainer.DisplayStatistics("DIVISION", level, count, userCorrect, userWrong);
return;
} //ModerateDivide()
} //EasyAdd()
public static void ModerateAdd()
{
/* This method allows user to practice "moderate" integer addition using one random single-digit number
* and one two-digit number, and displays useful statistics at the end.
* PARAM: None
* RETURN: None
*/
bool moreData = true;
string level = "Moderate";
string strAnswer = null;
int intAnswer = 0, correctAnswer, count = 0, userCorrect = 0, userWrong = 0;
Random objRandomNum = new Random();
while (moreData == true)
{
int op1 = objRandomNum.Next(1, 10); //random operand between [1-9]
int op2 = objRandomNum.Next(10, 100); //random operand between [10-99]
correctAnswer = op1 + op2;
Clear();
//print header and question
Helpers.printHeader("add", level);
Helpers.printQuestion(op1, op2, ref count, "+");
//get answer and parse it
strAnswer = Helpers.getUserAnswer();
int.TryParse(strAnswer, out intAnswer); //invalid data is converted to answer=zero
//check answer
Helpers.checkAnswer(intAnswer, correctAnswer, ref userCorrect, ref userWrong);
//ask user if they want another problem
moreData = Helpers.checkProceed("addition", level);
}
MathTrainer.DisplayStatistics("ADDITION", level, count, userCorrect, userWrong);
return;
} //ModerateAdd()
