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"The Golden Beads are a math material used to teach the decimal system and arithmetic operations such as addition, subtraction, multiplication, and division. The set includes single beads (units), bars of ten beads (tens), squares of 100 beads (hundreds), and cubes of 1,000 beads (thousands). Children manipulate the beads to physically represent and understand mathematical concepts."
<https://iqland.ca/blogs/materials-for-cognitive-and-language-development/golden-beads>