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{"sheet":"Challenge 1","index":0,"n_rows":25,"n_cols":1,"rows_kept":25,"cut":false,"hidden":false,"merged":[]}
["40 ÷ 5"]
["10 ÷ 1"]
["12 ÷ 6"]
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["56 ÷ 8"]
["27 ÷ 9"]
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["4 ÷ 4"]
["30 ÷ 10"]
["28 ÷ 7"]
["8 ÷ 8"]
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{"sheet":"Challenge 2","index":1,"n_rows":25,"n_cols":1,"rows_kept":25,"cut":false,"hidden":false,"merged":[]}
["36 ÷ 6"]
["70 ÷ 7"]
["40 ÷ 8"]
["12 ÷ 2"]
["12 ÷ 4"]
["9 ÷ 1"]
["5 ÷ 1"]
["54 ÷ 9"]
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["32 ÷ 8"]
["4 ÷ 4"]
["40 ÷ 5"]
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["9 ÷ 3"]
["8 ÷ 1"]
["60 ÷ 10"]
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["36 ÷ 4"]
["24 ÷ 3"]
["100 ÷ 10"]
["1 ÷ 1"]

{"sheet":"Challenge 3","index":2,"n_rows":25,"n_cols":1,"rows_kept":25,"cut":false,"hidden":false,"merged":[]}
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["32 ÷ 8"]
["70 ÷ 10"]
["6 ÷ 1"]
["80 ÷ 8"]
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["8 ÷ 8"]
["16 ÷ 4"]
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{"sheet":"Challenge 4","index":3,"n_rows":25,"n_cols":1,"rows_kept":25,"cut":false,"hidden":false,"merged":[]}
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["7 ÷ 7"]
["12 ÷ 2"]
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["18 ÷ 6"]
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["56 ÷ 7"]
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["32 ÷ 8"]
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["24 ÷ 6"]
["45 ÷ 5"]
["2 ÷ 2"]
["60 ÷ 10"]
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["72 ÷ 9"]
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{"sheet":"Challenge 5","index":4,"n_rows":25,"n_cols":42,"rows_kept":25,"cut":false,"hidden":false,"merged":[]}
["80 ÷ 10"]
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["6 ÷ 1"]
["20 ÷ 10"]
["8 ÷ 8"]
["40 ÷ 10"]
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