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Anak-anak harus mengelompokkan, mengatur, mencocokkan, membandingkan, berhitung, mengembangkan logika dan konsep spasial anak-anak, dan inilah dasar-dasar matematika, dan membiarkan anak-anak mencari konsep dan hubungan logis antara angka dalam hidup dan bermain, yang merupakan buku teks matematika Z yang bagus, bukan?
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