Neidio i'r prif gynnwys
Enrhifo
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Ffactor
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Problemau tebyg o chwiliad gwe

Rhannu

10\times 900-100-30+20000
Cyfrifo 30 i bŵer 2 a chael 900.
9000-100-30+20000
Lluosi 10 a 900 i gael 9000.
8900-30+20000
Tynnu 100 o 9000 i gael 8900.
8870+20000
Tynnu 30 o 8900 i gael 8870.
28870
Adio 8870 a 20000 i gael 28870.