About this game  It's a huge Hopper Challenge... Tenths!  Click
this image to open the interactive  It's a huge Hopper
Challenge... Tenths!  Challenge your ability to see number
patterns in numbers containing tenths. And how well can you
estimate?  Help a frog to jump along a number line. Add
multiples of tenths to a starting number (or subtract them from
it). Then estimate the frog's exact finishing point on the line.
For example, 29.5 + (12 x 0.2) = 31.9.