Place-value understanding in number line estimation predicts future arithmetic performance.


In multi-digit numbers, the value of each digit is determined by its position within the digit string. Children's understanding of this place-value structure constitutes a building block for later arithmetic skills. We investigated whether a number line estimation task can provide an assessment of place-value understanding in first grade. We hypothesized… (More)
DOI: 10.1111/bjdp.12146


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