Answer to Question #191376 in Algebra for Happy Raj

Question #191376

What could be the logic behind the following subtraction done by a child:3.45-4.6=1.39 Does this shows that the child has not understood the process of subtraction of numbers? Give reasons for your answer. How will you help her to correct her mistake.



1
Expert's answer
2021-05-11T11:32:57-0400

The logic behind the following subtraction done by a child 3.45 - 4.6 = 1.39 is that the child doesn't understand negative numbers, because the result should be negative, and the child substracts decimal as a hundredth, so it doesn't understand fractions. So, this shows that the child has not understood the process of subtraction of fractions and operations with negative numbers.


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