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4000克{#blank#}1{#/blank#}5千克     9435克{#blank#}2{#/blank#}10千克     45÷5{#blank#}3{#/blank#}10

3×7{#blank#}4{#/blank#}27÷9        45+7{#blank#}5{#/blank#}35+9          90-43{#blank#}6{#/blank#}6×9

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