HALVING HANDS - multiples of ten

One of my students came up with this creative and resourceful strategy for halving multiples of ten.  I have used it with other students who have found it useful too. 


When asked to half 30, H hold up three fingers.  She then counted in 5s and answered 15.  H  also uses this strategy when asked to halve 36, etc.

 To find the answer, halve of 70, H would hold up seven fingers and count to 5 and correctly answer 35.