最小的質(zhì)數(shù)與最小的合數(shù)的和是最小兩位數(shù)的百分之幾?
解:最小的質(zhì)數(shù)是2,最小的合數(shù)是4,最小的兩位數(shù)是10,
(2+4)÷10,
=6÷10,
=0.6,
=60%,
答:最小的質(zhì)數(shù)與最小的合數(shù)的和是最小兩位數(shù)的60%.
分析:最小的質(zhì)數(shù)是2,最小的合數(shù)是4,最小的兩位數(shù)是10,再根據(jù)百分數(shù)的意義解答.
點評:此題解答關(guān)鍵是明確:最小的質(zhì)數(shù)是2,最小的合數(shù)是4,最小的兩位數(shù)是10,然后根據(jù)百分數(shù)的意義解答.