P5 Ratio (Fr: Priscilla, fr PRPS)

P5 Fraction (fr max, taken from Nanyang pr)

P5 average (fr max. Taken fr Nanyang pr ppr)

P5 percentage (fr max. Taken fr Nanyang pr ppr)

P5 geom (fr Priscilla, my pals

P5 whole numbers (fr Max, taken from Rosyth ppr) heuristics: simultaneous

P5 Fraction (fr Max, taken from Rosyth ppr)

P5 fraction (fr Max, taken from Rosyth ppr)

P5 whole numbers (fr Max, taken from Rosyth ppr)

P5 Fraction / Ratio (fr Elston)

P5 Ratio, Volume (fr Zac)

P5 fractions (fr Max, taken fr Ai Tong's paper)