某粮店运来12袋大米和9袋面粉,大米和面粉共重798千克,每袋大米的重量和每袋面粉(数量关系)
某粮店运来12袋大米和9袋面粉,大米和面粉共重798千克,每袋大米的重量和每袋面粉(数量关系)
数学人气:979 ℃时间:2019-08-20 12:22:46
优质解答
每袋大米的重量×大米的袋数+每袋面粉的重量×面粉的袋数=总重量
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