ABACUS BOOK TERM-1 TO TERM-3 WITH 15 ROD SINGLE COLOUR ABACUS - ABACUS BOOKS  (Paperback, ARJIWN ABACUS)

ARJWIN ABACUS ABACUS BOOKS COMBO. TERM-1 TO TERM-3 . A4 SIZE BOOKS WITH 50 PAGES EACH. Term 1- Direct Addition and Subtraction, Small Friends Addition and Subtraction , Big Friends Addition and combination ( 21Formulae) Term 2 - Big friends Subtraction, subtraction combination,(13 formulas) conversion from 40 to 50 and 90 to 100, double ,triple digits addition and subtraction. Term 3 - Two Digit Three Rows , Four Rows and Five Rows Addition and Subtraction, Three Digit Two Rows , Three Rows Addition and Subtraction. Mental Arithmetic - Introduction with Beads Picture .