$\left ( {1} \right )100\div 17.9$
$\approx 100\div 20$
$=5\left ( {本} \right )$
$\left ( {2} \right )\left ( {100-41.5\times 2} \right )\div 9.5$
$=17\div 9.5$
$\approx 1\left ( {盒} \right )$
故答案为:$\left ( {1} \right )5,\left ( {2} \right )1$
标签:______,够买
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