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Real Numbera and Connection to Algebra

Total questions: 15

Worksheet time: 30mins

Name
Class
Date
1.

What are significant digits in a number?

a)

Significant digits are the digits in a number that contribute to its precision, including all non-zero digits and certain zeros.

b)

All digits in a number regardless of their value

c)

Only the first digit of a number

d)

Digits that are always zero in a number

2.

What is the square root of 144?

a)

10

b)

14

c)

12

d)

16

3.

Calculate 34

a)

64

b)

243

c)

27

d)

81

4.

How many significant digits are in the number 0.00789?

a)

4

b)

5

c)

2

d)

3

5.

Find the cube root of 27.

a)

2

b)

3

c)

4

d)

5

6.

Calculate 25

a)

16

b)

32

c)

8

d)

64

7.

What is the value of √16?

a)

2

b)

5

c)

4

d)

3

8.

How many significant digits are in the number

78,003,400?

a)

4

b)

5

c)

2

d)

6

9.

Identify the parts.

a)

4 is a radical/ 16 is an index/ √ is a radicand sign

b)

4 is an index/ 16 is a radicand/ √ is a radical sign

c)

4 is an index/ 16 is a radical / √ is a radicand sign

d)

4 is a radicand/ 16 is an index/ √ is a radical sign

10.

Is the number 0.4444444..... rational or irrational?

a)

rational

b)

irrational

11.

Is the number 1.41421356237 rational or irrational?

a)

rational

b)

irrational

12.

Is pi rational or irrational?

a)

rational

b)

irrational

c)

Both

13.

Is the number 0.5 rational or irrational?

a)

rational

b)

irrational

14.

Evaluate 8 2/3

a)

8

b)

4

c)

2

d)

24

15.

Simplify

a)

8 a b2c10/3

b)

4 a b2c 10/3

c)

2 a b 2 c10/3

d)

2 a9b18c30