Quiz Quiz Trade. *could also be used to order them from least to greatest* Decimal & Fraction Conversions. Students can show either side of the card. Grades: 5th, 6th, 7th, 8th, common decimals (32 cards): /2, /3, /4, /5, /10, /20, /25, /50 halves, thirds, fourths, fifths, tenths, twentieths, twentieth-fifths, fiftieths harder decimals (16 cards): /8, /9, /11 eightieths, ninths, elevenths, 48 cards total