expanded form 和進制問題

2007-07-31 5:48 pm
( a ) Convert 3FA(16) into a denary number.

( b ) Convert 101010(2) into a denary number.

( c ) Find the sum of th answer in (a) and (b) and enpress itin expanded form.

回答 (2)

2007-07-31 6:12 pm
✔ 最佳答案
(a) 3FA
=3 x 16^2 + 15 x 16 + 10 x 16^0
=1018(10)

Note:F(16) = 15(10); A(16) = 10(10)

(b) 101010
= 1 x 2^5 + 0 x 2^4 + 1 x 2^3 + 0 x 2^2 + 1 x 2 + 0 x 2^0
= 42(10)

(c) Sum
= 1018 + 42
= 1060
= 1 x 10^3 + 0 x 10^2 + 6 x 10 + 0 x 10^0
2007-08-02 2:31 am
A) 1080(10)
B) 42(10)
C) 1060


收錄日期: 2021-04-13 00:54:17
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070731000051KK01016

檢視 Wayback Machine 備份