child calculates arithmetic problem orally mental portrait boy doing mathematics |
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| navigate by keyword : mental arithmetic problemsolving logical thinking preparation growth mindset brain training child abacus mathematics counting education school classroom boy intelligence cognition concentration focus patience perseverance determination skill manipulation traditional culture history visual tactile memory creativity imagination play fun fascination curiosity futureready cognitive conceptual selfconfidence sense learning skills proficiency development stem ancient tool calculates problem orally portrait |
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| Child calculates an arithmetic problem orally. Mental arithmetic. Portrait of a boy doing mathematics. |
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