ABSTRACT: This study aimed to determine the effectiveness of Blended Learning in improving thePerformance of the grade 2 learners in Mathematics at Otavi Elementary SchoolDision of SorsogonProvince for the School Year 2022-2023.The quasi experimental method of research was employed in the study. The main instrumentthat was used is a teacher-made test to gather the needed data. The respondents of the study were the50 grade 2 pupils that were grouped into control and experimental groups. The data gathered wereanalyzed and interpreted by the use of appropriate statistical tools and measures.The findings of the study were: the computed Mean Performance Level (MPL) of the control group inthe pre-test in the operations along whole numbers, Ordinal numbers, Money, addition of wholenumbers and, addition of money were 42, 44.8, 46.8, 50.4 and 44.4 respectively with an average MPLof 45.68 and were all described as Did Not Meet the Expectations (DNME). On the other hand, thecomputed Mean Performance Level (MPL) of the experimental group in each of the said topics are71.2, 34, 47, 52.4 and 36.8 accordingly with an average MPL of 48.58and were also described as DidNot Meet the Expectations (DNME).