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?????? ?????????

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?????? ????:?????? ????:?? ????:4M2 ??(?) ????:??????

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B ????? ????????????????????????,?????????????

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C ????? ????????????????????????,?????????????

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?????? ??B???? ____ cm2; ??C???? ____ cm2; ??B???C?????? 20 20

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?????? B C 4 10 20 20 2

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?????? ???????????? ? = ??÷? ? = ??÷? ?????? = ? X ?

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?????? ??????? 2 cm 12 cm ???: 12 X 2 = (cm2) 24

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?????? ??????? ??: 117 cm2 9 cm ? cm ??: 117 ÷ 9 = (cm) 13

?????? : 

?????? ??????? ??: 72 cm2 12 cm ? cm ??: 72 ÷ 12 = (cm) 6

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?????? ???? ??????????? ????? ??A?8?,?6?,??????????? ?????: X = (???) 8 6 48

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?????? ???? ??????????? ????? ??B??96?,?6?,???????? ????: ÷ = (?) 96 6 6

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?????? ???? ??????????? ????? ??C???126?,?21?,?????????? ????: ÷ = (???) 26 21 48

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?????? ? The End