YEAR 7 MAHTEMATICS week 8 quizz

110 + 101

• 1100

• 1011

• 1111

• None

What is the result of adding 1011₂ and 1101₂?

• 10110₂

• 11000₂

• 10010₂

• 10101₂

6. The number 3.2900 × 10³ has how many significant figures?
   
   
   
   

• 6. a) 2

• 6. b) 3

• 6. c) 4

• 6. d) 5

What is 45.678 rounded to 4 significant figures?

• a) 45.67

• b) 45.68

• c) 45.7

• d) 46

• Round 65432 to 3 significant figures.
  
  
  
  

• • a) 65000

• • b) 65400

• • c) 65500

• • d) 654

• Round 65432 to 3 significant figures.
  
  
  
  

• • a) 65000

• • b) 65400

• • c) 65500

• • d) 654

Find 1001₂ × 101₂.

• a) 101101₂
  
  
  

• b) 100101₂

• c) 11001₂

• d) 10101₂

• Compute 1110₂ + 1011₂.
  
  
  
  

• 
  

• • a) 11001₂

• • b) 10001₂

• • c) 10100₂

• • d) 11100₂

Multiply 101₂ by 11₂.

• a) 1111₂

• b) 1001₂

• c) 1110₂

• d) 1101₂

Convert 5/8 to decimal

• 0.635

• 0.625

• 0.825

• 0.834