Loading...
beginner
Problem 03 • Step 02
Add on the board
Two herds again, each on a small board of its own, in its own colour. How many cattle are there together?
Bring both herds onto the big board, each pebble to the same line, then mix them. Tap a pebble to bring it across, or bring a whole herd at once. Then pick ten pebbles on one line, and they become one pebble on the line above. Keep going until no line has ten. There are 2 rounds.
Try It
Exercise 02Loading...