diff --git a/Axel/src/de/hs_mannheim/informatik/spreadsheet/Spreadsheet.java b/Axel/src/de/hs_mannheim/informatik/spreadsheet/Spreadsheet.java
index 0a30454..4761765 100644
--- a/Axel/src/de/hs_mannheim/informatik/spreadsheet/Spreadsheet.java
+++ b/Axel/src/de/hs_mannheim/informatik/spreadsheet/Spreadsheet.java
@@ -153,18 +153,18 @@ public class Spreadsheet {
 		String formula = cells[row][col].getFormula();
 		String result = "";
 
-		if (formula.startsWith("SUMME("))  // e.g. SUMME(A3:A8)
+		if (formula.startsWith("SUMME(")) // e.g. SUMME(A3:A8)
 			result = "" + sum(formula.substring(6, 8), formula.substring(9, 11));  // TODO adapt to cells with two digits
 		else if (formula.startsWith("PRODUKT("))  // e.g. PRODUKT(A3:B9)
-			result = "" + multiplier(formula.substring(6, 8), formula.substring(9, 11)); // TODO
+			result = "" + multiplier(formula.substring(8, 10), formula.substring(11, 13)); // TODO
 		else if (formula.startsWith("MITTELWERT("))  // e.g. MITTELWERT(A3:A5)
-			result = "TODO"; // TODO
+			result = "" + mittelwert(formula.substring(11, 13), formula.substring(14, 16)); // TODO
 		else if (formula.startsWith("STABW("))  // e.g. STABW(C6:D8) -> Standardabweichung
 			result = "TODO"; // TODO
 		else if (formula.startsWith("MIN("))  // e.g. MIN(C13:H13) -> größter Wert
-			result = "TODO"; // TODO
+			result = "" + min(formula.substring(4, 6), formula.substring(7, 9)); // TODO
 		else if (formula.startsWith("MAX("))  // e.g. MAX(A1:A10) -> Standardabweichung
-			result = "TODO"; // TODO
+			result = "" + max(formula.substring(4, 6), formula.substring(7, 9)); // TODO
 		else if (!formula.isEmpty()) {
 			try {
 				result = "" + calculate(formula);
@@ -175,7 +175,7 @@ public class Spreadsheet {
 
 		cells[row][col].setValue("" + result);
 	}
-
+	//substring start und ende auf die entsprechende Wortlänge bei der Bedingung anpassen
 	/**
 	 * Method for calculating the sum of a rectangular block of cells, such as from A1 to B3.
 	 * @param startCellName The name of the cell in the upper left corner of the rectangle.
@@ -216,6 +216,65 @@ public class Spreadsheet {
 
 		return result;
 	}
+	private long mittelwert(String startCellName, String endCellName) {
+
+		int startRow = getRow(startCellName);
+		int startCol = getCol(startCellName);
+		int endRow = getRow(endCellName);
+		int endCol = getCol(endCellName);
+		int counter = 0;
+		long summe = 0;
+
+		long result = 0;
+
+		for (int i = startRow; i <= endRow; i++) {
+			for (int j = startCol; j <= endCol; j++) {
+				counter++;
+				summe += (Integer.parseInt(cells[i][j].getValue()));
+			}
+		}
+		result = summe / counter;
+
+		return result;
+	}
+	 private long min(String startCellName, String endCellName) {
+		 int startRow = getRow(startCellName);
+		 int startCol = getCol(startCellName);
+		 int endRow = getRow(endCellName);
+		 int endCol = getCol(endCellName);
+		 long result = 0;
+
+		 for (int i = startRow; i <= endRow; i++) {
+			 for (int j = startCol; j <= endCol; j++) {
+
+				 result = (Integer.parseInt(cells[i][j].getValue()));
+				 if(result >  (Integer.parseInt(cells[i][j].getValue()))) {
+					 result = (Integer.parseInt(cells[i][j].getValue()));
+				 }
+
+			 }
+		 }
+		 return result;
+	 }
+
+	private long max(String startCellName, String endCellName) {
+		int startRow = getRow(startCellName);
+		int startCol = getCol(startCellName);
+		int endRow = getRow(endCellName);
+		int endCol = getCol(endCellName);
+		long result = 0;
+
+		for (int i = startRow; i <= endRow; i++) {
+			for (int j = startCol; j <= endCol; j++) {
+
+				if(result <  (Integer.parseInt(cells[i][j].getValue()))) {
+					result = (Integer.parseInt(cells[i][j].getValue()));
+				}
+
+			}
+		}
+		return result;
+	}
 
 
 		// TODO implement