# Binary shifts and addition

## Quiz by GCSE Computer Science Teacher 2

GCSE (AQA)

Computer Science

English National Curriculum

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12 questions

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- Q1What does it mean to apply a binary shift?To multiply or divide a numberTo subtract from a numberTo add to a numberTo move a number in memory30s3.3.4
- Q2Which direction should the binary digits move if the number is multiplied?UpRightDownLeft30s3.3.4
- Q3Which direction should the binary digits move if the number is divided?LeftDownUpRight30s3.3.4
- Q4Once the existing digits are shifted left in a binary multiplication, what should fill those spaces?It depends on what was there beforeNothing1's0's30s3.3.4
- Q5How many digits must a number shift to get a multiplication or division of 2?312430s3.3.4
- Q6How many digits must a number shift to get a multiplication or division of 4?231430s3.3.4
- Q7How many digits must a number shift to get a multiplication or division of 16?234130s3.3.4
- Q8What would binary number 010011 be after a shift of 2 (left) is applied to it?0010010101001100001010010100111160s3.3.4
- Q9What term describes not having enough bits to store a newly calculated binary number?Logic errorOverflowRun time errorSyntax Error60s3.3.4
- Q10What happens when you need to add 1 + 1 together in binary addition?You write down 2You get an errorYou write down 1 and carry 1 overYou write down 0, and carry the 1 over60s3.3.4
- Q11What will happen at the end of this addition?You write 1 and add another columnThe last number will default to 1There will be an overflow errorYou write 0 and carry the 160s3.3.4
- Q12What is the result of the following numbers being added together?10000101Overflow110111001001110060s3.3.4