Atandigre Agamboka A, Kwasi Mensah D, Ador E. USING THE ABACUS TO ADDRESS CHALLENGES BASIC THREE (3) PUPILS WITH LEARNING DIFFICULTIES HAVE WITH PLACE VALUE OF NUMBERS IN EXPERIMENTAL SCHOOL IN BOLGATANGA MUNICIPALITY, GHANA. er [Internet]. 20Jul.2023 [cited 3Jul.2024];6(06):57-5. Available from: https://gphjournal.org/index.php/er/article/view/944