第一题:2 4 7 12 20 33 54 第二题:8 3 4 1 5 9 6 7 第三题:Mrs black has some cards in her hand.If mary,her daughter ,gives her 24 more ,she will have three time as many .How mang cards does Mrs black have in her hand?第四题:2 15 37 2

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第一题:2 4 7 12 20 33 54 第二题:8 3 4 1 5 9 6 7 第三题:Mrs black has some cards in her hand.If mary,her daughter ,gives her 24 more ,she will have three time as many .How mang cards does Mrs black have in her hand?第四题:2 15 37 2

第一题:2 4 7 12 20 33 54 第二题:8 3 4 1 5 9 6 7 第三题:Mrs black has some cards in her hand.If mary,her daughter ,gives her 24 more ,she will have three time as many .How mang cards does Mrs black have in her hand?第四题:2 15 37 2
第一题:2 4 7 12 20 33 54 第二题:8 3 4 1 5 9 6 7
第三题:Mrs black has some cards in her hand.If mary,her daughter ,gives her 24 more ,she will have three time as many .How mang cards does Mrs black have in her hand?
第四题:2 15 3
7 23 6

第一题:2 4 7 12 20 33 54 第二题:8 3 4 1 5 9 6 7 第三题:Mrs black has some cards in her hand.If mary,her daughter ,gives her 24 more ,she will have three time as many .How mang cards does Mrs black have in her hand?第四题:2 15 37 2
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