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How to avoid common mistakes made while solving math problems

Though the students enjoy solving math problems, however in many cases they tend to make mistakes. These mistakes could be because of carelessness or because the child did not understand the concept properly. Here are some of the tips to avoid common mistake in math.
• Perform each step carefully: Don't be in a hurry. Solve each step carefully because the moment you make mistake in a step, the following steps will be incorrect.
• Understand concept clearly: It is very important that you understand the concept clearly, else there is big chance that your answer will be incorrect.
• Read the question carefully: This is a very common problem that the students do not read the question carefully, which leads to incorrect answer. Here again don't be in a hurry.
• Remember to bring all the units to the same level: It is common that the units in a problem may be different. Let's say you are given to find the area of a rectangle whose length is 2 m and breadth is 70 cm. Here if the student overlooks the units, the answer may be incorrectly derived as 140 m² (=2*70). Here first both the length and breadth needs to be brought to the same unit (m or cm), then the multiplication should be performed.
• Use rough space to perform the calculations (multiply, divide, etc.): Usually the students puts a margin to perform rough work. This is to ensure that the calculation is correctly performed
• Start your solution with the relevant formula: Suppose you are given a problem to find the simple interest. First write the formula of simple interest; SI=(P*R*T)/100; then assign the values as given in the question to the variables in the formula. In this way, you will avoid making any error.
• Answer should be logical: For example, if you get profit% as 1000%, you should revisit your solution. Most of the time, the person who forms the question takes care of the practical situation.
• Validate the answer if possible: Let's say you have solved an equation (2x+7=13) and you get x=3. Validate your answer by putting the value of x in the equation 2x+7, you should get 13(=2*3+7). If you do not get 13, that means your answer is incorrect.
• Understand the mistakes you have made: Understand what was the reason for making mistake whether it was incorrect understanding of the concept or carelessness. This will ensure that next time you do not make the same mistake
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Given below are other commonly made mistakes in Math:
Clock Reading Time | Exponents & Power | Whole to number-word | Square root | Lines & Angles | Integers | Area Plane Figure | Perimeter Plane Figure | Algebraic Identities | Congruence of Triangles | Similar Triangles | Coordinate Geometry | Trigonometry | Solving equations | Polynomial | Division | Algebraic Expression | Average |
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