3/5 of 20 pens is 12 pens, 5/7 of 28 rubbers is 20 rubbers, 3/5 of 10 books is 6 books, 2/9 of 18 rulers is 4 rulers, 5/8 of 24 crayons is 15 crayons, 4/6 of 30 pencils is 20 pencils

U31.3

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1-10 matching quantities
1-10 matching quantities
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Pagsusulit
复习：数笔画
复习：数笔画
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Pagtutugma
Fractions, Percents and Ratios
Fractions, Percents and Ratios
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Pagtutugma
Bag book pencil pen ruler
Bag book pencil pen ruler
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Pagtutugma
pen, pencil,book, ruler, rubber
pen, pencil,book, ruler, rubber
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Random na kards
三下數學_單元1-2：除法_三位數除以一位數(共5題)
三下數學_單元1-2：除法_三位數除以一位數(共5題)
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Labelled Diagram
三下數學_單元3-1：分數與加減_4個1/3是4/3(共7題)
三下數學_單元3-1：分數與加減_4個1/3是4/3(共7題)
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Hanapin ang tugma
Bag book pencil pen ruler
Bag book pencil pen ruler
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Pagsusulit ng imahe
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