题目内容
观察下列算式:
,
,
,
,….根据上述算式中的规律,请你猜想
的末尾数字是( )
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A.2 | B.4 | C.8 | D.6 |
B
分析:本题需先根据已知条件,找出题中的规律,即可求出210的末位数字.
解答:解:∵21=2,22=4,23=8,24=16,
25=32,26=64,27=128,28=256,…
∴210的末位数字是4.
故选B.
解答:解:∵21=2,22=4,23=8,24=16,
25=32,26=64,27=128,28=256,…
∴210的末位数字是4.
故选B.
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