Denary - binary Flashcards
1
Q
Convert 170 from denary to binary
170 - 128 = 42
42 - 32 = 10
10 - 8 = 2
2 - 2 = 0
A
170 - 128 = 42
42 - 32 = 10
10 - 8 = 2
2 - 2 = 0
Place a 1 in 128
Place a 1 in 32
Place a 1 in 8
Place a 1 in 2
= 10101010
2
Q
how do you work out Denary to binary
A
1) Draw a binary place value table
128 64 32 16 8 4 2 1
2) Keep subtracting the biggest place values you can until you’re left with 0
3) If you subtracted a place value, put a 1 in that column, otherwise put a 0
3
Q
convert 255 into binary
A
11111111
4
Q
convert 254 into binary
A
11111110
5
Q
convert 163 into binary
A
10100011
