Binary & Denary

What is 01010101 in denary?
84
85
53
52
What is 10000101 + 00110100?
10101001
00001001
10111001
10100011
How do you write 116 in binary?
01110100
01110000
01010100
10101010
How do you write 53 in binary?
00110000
00110101
10101010
00000101
What is 00100101 + 01010101?
01110000
01111010
01011010
01010101
Which of these rules is incorrect?
0 + 0 = 0
0 + 1 = 1
1 + 1 = 0 carry 1
1 + 1 = 1 carry 0
What is 51 in binary?
00110011
00101010
00000011
00110010
What is 0010100 + 11001001?
11110010
11110000
1100101
01010010
How do you write 187 in binary?
10100010
10111010
01010101
01011010
How do you write 112 in binary?
01110000
01110101
01010000
01010101
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