NT$35.00
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The Flat Bead Frame contains nine columns of movable golden beads and is use as final step in the passage to abstraction with multiplication.
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ADDITION STRIP BOARD
FRACTION SKITTLES
INTRODUCTION TO DECIMAL QUANTITY
HUNDRED BOARD
HIERARCHICAL TRINOMIAL CUBE
SMALL WOODEN NUMBER CARDS 1-9000
SPINDLE BOX
PRINTED NUMERALS WITH BOX
BASE TEN
TENS BOARDS
TEEN BOARDS
INTRODUCTION TO DECIMAL SYMBOL
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