Aloha India, leader in advanced Abacus and Mental Arithmetic programs

This is your RIGHT HAND... represents Unit

Now Let us practice the Finger Calculation (+) and ( - )
1+1=	2+2=	3+1=
9-2=	5-3=	8-3=
9-4=	7-1=	4-2=

Exercise : Try it orally or by sight
(1) 1 + 3 - 4 (2) 2 + 1 - 2 (3) 3 + 1 - 2 (4) 5 + 2 - 1 (5) 9 - 6 - 3	(6) 8 + 1 - 9 (7) 4 - 2 + 6 (8) 7 - 5 + 2 (9) 6 - 1 - 5 (10) 2 + 2 + 5