Understanding Floating Point Binary (video)

Understanding Floating Point Binary (video)

7th Grade

10 Qs

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Understanding Floating Point Binary (video)

Understanding Floating Point Binary (video)

Assessment

Interactive Video

Computers

7th Grade

Practice Problem

Medium

Created by

B McCue

Used 2+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the number 6.5 represented in binary?

11001100

00000110.1

00110100

01101000

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the leftmost bit in a binary number represent in two's complement format?

It indicates the binary point.

It always represents a negative number.

It is used for storing fractional parts.

It always represents a positive number.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the biggest positive number that can be stored in an 8-bit fixed point binary format?

15.875

127.5

7.875

255

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why can't a third be precisely represented in fixed point binary?

Because it repeats forever.

Due to limited bits for the fractional part.

Because it's an irrational number.

All numbers can be precisely represented.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does floating point binary allow us to do?

Store numbers without any loss of data.

Use an unlimited number of bits.

Choose between size and accuracy of the number.

Store only whole numbers.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the two parts of a floating point binary number?

Mantissa and exponent

Whole and fractional

Positive and negative

Integer and decimal

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many bits are used for the mantissa and exponent in a 32-bit single precision number?

8 bits for mantissa, 24 for exponent

24 bits for mantissa, 8 for exponent

16 bits for each

32 bits for mantissa only

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