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. GPH-International Journal of Educational Research, v. 6, n. 06, p. 57-75, 20 jul. 2023.