Finger Calculation -3

Finger Calculation -3

Finger Calculation LESSON 3
Combination of both hands . . .
Now Let us practice the Finger Calculation (+) and ( – )
Exercise : Try it orally or by sight
(1) 10 + 30 – 40
(2) 20 + 10 – 20
(3) 30 + 10 – 20
(4) 50 + 20 – 10
(5) 90 – 60 – 30
(6) 80 + 10 – 90
(7) 40 – 20 + 60
(8) 70 – 50 + 20
(9) 60 – 10 – 50
(10) 20 + 20+ 70