三个数目的减法

三个数目的减法
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exercise for student

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Sumas ABN - 6

Addition and Subtraction - Math

sumas abn

Restas ABN - 5

Addition and Subtraction - Math

restas abn

proprietà operazioni

Addition and Subtraction - Math

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Tabla pitagórica 54

Addition and Subtraction - Math

Resuelve la siguiente tabla pitagórica de sumas.