← Math
Base Ten Blocks
✎ Pen
Eraser
Erase all
Equation box
Block size
Undo
Clear Board
Click a block
to put it on the board ·
Pick 10 of the same kind
, then press Trade ·
Tap a block
to trade it down or take it away ·
Pen
writes on the board
Blocks
Trade for the next block
Trade for smaller blocks
Take away
Unpick