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Worksheetsreal numbers
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
3. Which of the following is not irrational?
a)
(a) (2 - √ 3)2
b)
(b) (√2 + √3)2
c)
(c) (√2 -√3)(√2 + √3)
d)
(d) 2√7/7
2.
2. HCF of 8, 9, 25 is
a)
(a) 8
b)
(b) 9
c)
(c) 25
d)
(d) 1
3.
1. The decimal form of irrational number is
a)
(a) terminating
b)
(b) non-termining
c)
(c) non-terminating non-repeating
d)
(d) none of the above
4.
If a = 2 + 1 then the value of a - a1 is
a)
2
b)
1
c)
0
d)
none of these
5.
If x = 2 − 1 then x1 is
a)
2 + 1
b)
2 − 1
c)
1
d)
2
6.
-4 is not a whole number because:
a)
It's negative and whole numbers are positive.
b)
it's irrational.
c)
it cannot be turned into a fraction.
d)
it is even.
7.
a)
Rational, Integer
b)
Whole, Integer, Rational
c)
Irrational, Integer
d)
Irrational
8.
a)
2/3
b)
-2/3
c)
3/5
d)
-3/5
9.
Which represents a rational number?
a)
√110
b)
√324
c)
√65
d)
√80
10.
Which of the following is rational?
a)
.211232112421125. . . .
b)
π
c)
√25
d)
√12
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