Mohammed Salem Mahfoud Basniqab. The Degree of Sixth-Grade Students’ Ability to Perform the four Arithmetic Operations on Fractions and Decimals in Aden Governorate. JEF [Internet]. 2025 Jul. 29 [cited 2025 Aug. 22];19(1):85-9. Available from: https://jef.adenuniv.net/index.php/jef/article/view/117