Question

數(shù)5和5.0的計(jì)數(shù)單位相同且大小相等．

錯(cuò)誤

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Answer 1

分析：對(duì)于整數(shù)與小數(shù)的計(jì)數(shù)單位，只要看最后一個(gè)數(shù)字在什么數(shù)位，知道這個(gè)數(shù)位上對(duì)應(yīng)的計(jì)數(shù)單位即可，根據(jù)小數(shù)的性質(zhì)進(jìn)一步判定大小解決問(wèn)題．

解答：解：5的計(jì)數(shù)單位是1，5.0的計(jì)數(shù)單位是0.1，計(jì)數(shù)單位不同；
小數(shù)的末尾添上“0”或去掉“0”小數(shù)的大小不變，所以5=5.0．
故答案為錯(cuò)誤．

點(diǎn)評(píng)：此題考查整數(shù)與小數(shù)的計(jì)數(shù)單位：搞清數(shù)字所在的數(shù)位以及對(duì)應(yīng)的計(jì)數(shù)單位；小數(shù)的性質(zhì)：小數(shù)的末尾添上“0”或去掉“0”小數(shù)的大小不變．