We wondered how many .....
We were thinking of efficient ways to work it out.
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| Sorting them into colours .... |
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| Keeping a tally of how many ... |
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| Grouping into 5's and 10's .... |
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| Joining the groups together .... and we had 50 of each colour! We found out we had 499 cubes altogether because there were only 49 orange ones. |
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