把下列数字写成几个质数和的形式:12=______+______15=______+______20=______+______=______+______24=_
把下列数字写成几个质数和的形式:12=______+______15=______+______20=______+______=______+______24=____...
把下列数字写成几个质数和的形式:12=______+______15=______+______20=______+______=______+______24=______+______=______+______.
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