Abaküs küçük anne ve çocuk sayıları - Stok Çekim ve Video

Front view of Caucasian schoolgirl learning mathematics with abacus in the classroom. She is counting beads 4k

Mid section of African American schoolboy using abacus in classroom at school. He is playing with abacus 4k

Front view of African American schoolboy learning mathematics with abacus in a classroom. He is counting beads 4k

Preschool student learning mathematics with abacus

Little boy counts on abacus

Timelapse of Ice Melting

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Laser Printer black, in a posh office published a lucrative contract for business

Monochrome laser printer in an office businessman opened the lucrative contract

Ads on tracing criminals on the table of the bounty hunter, combat pistol, cartridges