anschek/MathMod_EduPractic02

Alexandra Schekaleva d20375f4b6 completed presentation and add investment problem to report		6 月之前
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mathmodedupr02.metadata.v7.bin	d20375f4b6 completed presentation and add investment problem to report	6 月之前
mathmodedupr02.projects.v7.bin	d20375f4b6 completed presentation and add investment problem to report	6 月之前
mathmodedupr02.strings.v8.bin	9ded4d96f3 add presentation slide with investments	6 月之前