CA #2 Digital Electronics

Convert 128 to binary

• 10000000
• 01111110
• 10000001
• 11001100

Convert 254 to binary

• 11110000
• 11111100
• 11111111
• 11111110

Convert 00010001 to decimal

• 17
• 27
• 37
• 47

Convert 11001100 to decimal

• 224
• 134
• 104
• 204

If 1 and 0 mean on and off. Is the number 1 on or off?

• ON
• OFF

What two digits are used in binary?

• 0 & 2 
• 1 & 2
• 0 & 1
• 1 & 1

What is 0101 + 1010?
HINT:
1 + 0 = 1
0 + 1 = 1
1 + 1 = 10

• 1111
• 2020
• 146.6
• ?

What is the point of binary?

• It represents how computers interpret electrical signals
• Because we like to make you do extra maths ;-D
• For the lulz
• Because it describes star systems

Which of these is the correct sequence for the place values for binary numbers?

• 1, 2, 4, 8, 16, 32, 64, 128
• 1, 2, 4, 6, 8, 10, 12, 14, 16
• 1, 2, 3, 4, 5, 6, 7, 8
• 0, 1

Tags

CCSS.2.NBT.A.3

If a binary number ends with a 1, it must be...

• An odd number
• An even number
• A prime number
• The number 12

Tags

CCSS.2.OA.C.3