Class 7 Koshe Dekhi 6.3

Class 7 Koshe Dekhi 6.3 Class 7 Koshe Dekhi 6.3 1. মনে মনে হিসাব করি :    (i) 3a × 4b = ___ সমাধানঃ  3a × 4b = 12ab (উত্তর)   (ii) 12ab ÷ 3a = ____ সমাধানঃ  12ab ÷ 3a = 4b (উত্তর)   (iii) 12ab ÷ ____ = 4ab সমাধানঃ  12ab ÷ x … Read more

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