Binary sum 1001+101+11 = 10001
Recall:
0 + 0 = 0
0 + 1 = 0
1 + 0 = 0
1 + 1 = 10
Start from the end:
1 + 1 + 1 = 1 carry on 1
1 + 1 + 0 + 0 = 0 carry on 1
1 + 1 + 0 = 0 carry on 1
1 + 1 = 10
or
1001 = 23 + 20 = 8 + 1 = 9
101 = 22 + 20 = 4 + 1 = 5
11 = 21 + 20 = 2 + 1 = 3
17 = 24 + 20 = 10001
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201 in decimal1001 in binary9 in binary translated to decimal
Oh, dude, 101 101 in binary is 45 in decimal. It's like converting a secret code into regular numbers, but way less exciting. So, yeah, 101 101 is just 45 in binary - not as cool as it sounds.
Written as a binary number, 10 + 101 + 1010 = 10001.
The number 5 in binary is 101
In bionary 1 and 0 are the only numerals and counting with them looks like this 0, 1, 10, 11, 100, 101, 110, 111, 1000, 1001, 1010. (zero to ten) so the way for showing 2 is now 10. so 1+1=10 as 10+10=100 (i.e 2+2=4)