【西安小学数学小讲师】说数学，促思惟—距离问题(第一百零二期)
小平家距学校2千米，一次他上学走了1千米，想起忘带铅笔盒，又回家去取。此次他到学校共走了多少千米？
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【西安小学数学小讲师】说数学，促思惟—距离问题(第一百零二期)
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小平家距学校2千米，一次他上学走了1千米，想起忘带铅笔盒，又回家去取。此次他到学校共走了多少千米？
本文链接: https://www.yizhekk.com/0247339396.html
