Working backwards, with explanations.
Solution to,
John and Mary had some cookies at first. John gave 2/7 of his cookies to Mary. In return, Mary gave 1/4 of her cookies to John. In the end, John and Mary had the same number of cookies. What was the ratio of John's cookies to Mary's cookies at first?
with explanations.
posted by HelpingSGkidswithmath @ 10:12
1 Comments
1 Comments:
This approach of working backwards is incredibly effective for tackling complex PSLE problems! By breaking down the steps and understanding the logic behind the solutions, students can develop a stronger grasp of concepts and improve their overall performance in the PSLE.
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