Page 14 - PlayFacto_P10
P. 14
5 Place all the chips back to the table.
6 Take the chips as given in the table using estimation and count them.

Chips 10 20 30 40

Taken chips

Difference

Take the chips
without counting

them.

1. Estimate 11
   9   10   11   12   13   14   15   16   17   18   19