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“Improving The Ability Of Subtracting Small Numbers By Large Numbers Using The Jurang Board Media For 2nd Grade Elementary School Students At Sdn 4 Gondang In The 2024/2025 Academic Year”, JIME, vol. 11, no. 4, pp. 985–991, Oct. 2025, doi: 10.58258/jime.v11i4.9366.