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     EduGorilla 
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    A child mentally calculated (27 + 38) as 65. When he was asked to explain his method of addition, he responded that 38 is close to 40 and (27 + 40) is 67, then, he removed 2 to get 65. This strategy of addition is called

    Options :-

    1. direct modelling
    2. regrouping
    3. compensating
    4. incrementing
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