Yellow stand & posts
+ blue donuts

Red stand & posts
+ yellow donuts

Blue stand & posts
+ red donuts
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.

6-010 Donut Abacus in a polybag or:
6-010B Donut Abacus in a clear storage box
Both packs include one abacus stand,
three posts, 27 donuts and 3 complete
sets of hot-stamped 1-10 number tiles.
6-011 Donut Abacus Small Class Set in a clear plastic storage tub.
Contents: 6 stands, 18 posts, 162 donuts & 180 number tiles
(2 complete sets of each colour combination) and a teacher's guide
6-012 Donut Abacus Large Class Set in a clear plastic storage tub.
Contents: 9 stands, 27 posts, 243 donuts & 270 number tiles
(3 complete sets of each colour combination) and a teacher's guide