The Russian abacus was in use in shops and markets throughout the former Soviet Union, and its usage was taught in most schools until the 1990s.
ðə ɹˈʌʃən ˈæbækəs wʌz ɪn jˈuːs ɪn ʃˈɑːps ænd mˈɑːɹkɪts θɹuːˈaʊt ðə fˈɔːɹmɚ sˈoʊviət jˈuːniən, ænd ɪts jˈuːsɪdʒ wʌz tˈɔːt ɪn mˈoʊst skˈuːlz ʌntˈɪl ðə nˈaɪntiːnhˈʌndɹɪd nˈaɪnti z.