Counting, adding and subtracting is practical and enjoyable with this series of new & colourful abaci. Tactile and easy to grasp donuts, stands, posts and number tiles allow students to explore and record the results of their number investigations in a convenient, concrete and visual way.
Place Value is important: A donut on the right-hand post has a value of 1. On the middle post, it has a value of 1 ten. On the left-hand post it has a value of 1 hundred. Join another stand to extend into thousands, tens of thousands, etc. Add a decimal point to the ones column digit and make numbers smaller than one!!!
The posts hold EXACTLY 9 DONUTS because the largest digit in any column of our number system is 9.
Explore how the change from 9 to 0 adds a donut to the next post.
MADE IN AUSTRALIA
1 abacus stand,
3 complete sets of hot-stamped 1-10 number tiles.