Number bases binary and decimal

1, 982₁₀ is a base-10 number. Identify below the correct place value of each number.

• 1,000s, 900s, 80s, 2s

• 1,000s, 900s, 8s, 20s

• 1,000s, 90s, 80s, 2s

• 1,000s, 900s, 80s, 20s

How many digits does decimal use?

• 10

• 8

• 12

• 16

How many digits does binary use?

• 2

• 3

• 4

• 5

Convert the binary number 1001₂ into a decimal number.

• 7

• 8

• 9

• 10

Convert 1011₂ into a decimal number.

Convert 0001₂ into a decimal number.

Convert 1010₂ into a decimal number.

Convert 0111₂ into a decimal number.

Transistors allow electricity to be on or off in a (a)   . We combine lots of to represent ​ (b)   . Everything in a (c)   is represented with combinations of (d)   and (e)  

• circuit
• computer
• 1s
• 0s
• 10s
• data
• model
• diagram
• 100s

1,982₁₀ is a base-10 number. Complete the table below to state the place value of each number.

a

b

c

d

8

4

16

1

100

1 000

10

2