Week 5

This week's challenge was:

` If Mr booth had 80 balloons, but half of them popped, how many balloons would he be left with? You must be able to prove/ explain your working out.'

K.J. said," I got 8 tens in the Numicon. I partitioned it into 2 equal groups. It equalled 40."

Finlay D said, " I know it is 40 because 2 x 4 =8."

Roxanne explained, " I drew 8 tens sticks and crossed 1/2 out. I counted it and checked it, it equalled 40."