Ishirini na mbili : Tofauti kati ya masahihisho

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Mstari 2:
 
Ni [[namba asilia]] inayofuata [[ishirini na moja|21]] na kutangulia [[Ishirini na tatu|23]].
 
Vigawo vyake vya [[namba tasa]] ni: 2 x 11.
 
==Tanbihi==