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Numerical Estimation Abilities In Russian School-Age Children: Evidence Of Exponential Growth

Table 1:

Grade n M SD Median Age SD (months)
1 134 174.27 82.94 164.3 3.85
2 107 119.37 63.3 98.3 4.43
3 134 99.06 55.59 83.95 5.27
4 96 89.95 67.48 74.55 4.4
5 98 76.78 53.19 59.65 5.46
6 91 70 57.96 49.5 4.91
7 61 52.93 42.53 41.2 5.3
8 93 53.64 42.74 45.1 5.39
9 59 50.91 25.5 47.8 5.39
10 44 43.26 14.02 39.95 4.59
11 41 41.5 15.06 38.8 5.7
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