vector illustration of classic wooden abacus showing colorful beads for counting. - early childhood development icons stock illustrations
children's activities and education line icons set, editable stroke, vector illustration - early childhood development icons stock illustrations
calculating traditions black line & fill vector icon - early childhood development icons stock illustrations
vector illustration of classic wooden abacus showing colorful beads for counting dot to dot line drawing for children to learn to draw lines along the dotted lines. - early childhood development icons stock illustrations
vector illustration of classic wooden abacus showing colorful beads for counting black and white drawing for children to learn to color according to the picture. - early childhood development icons stock illustrations