Practice addition and subtraction within 100, a number of exercises can be random, and that contact with a different picture results.

100以内加减法\100以内的加减法.exe
.............\Form1.frm
.............\Form1.frx
.............\MSSCCPRJ.SCC
.............\NO.jpg
.............\NO1.gif
.............\ok.ico
.............\ok.jpg
.............\OK2.jpg
.............\OK3.gif
.............\工程1.vbp
.............\工程1.vbw
100以内加减法

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