8th Standard Syllabus & Materials
8th Standard
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NEW8th Standard
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TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - இயற்கையை போற்றுவோம் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
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Published on: 23/08/2019
Rational Numbers
Download Tamil Nadu 8th Standard Maths question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Maths Test1.
The value of \(\left( \frac { -15 }{ 23 } \right) \div \left( \frac { +30 }{ -46 } \right) \) is _____________
2.
The value of \(\frac { -5 }{ 12 } +\frac { 7 }{ 15 } \) = ________________
3.
The standard form of \(\frac { +58 }{ -78 } \) is ______________
4.
The rational number that is represented by 0.44 is __________.
5.
\(\frac { -19 }{ 5 } \) lies between the integers ______________ and ________________
6.
The product of two negative rational numbers is a positive rational number.
7.
The additive inverse of \(\frac { -11 }{ -17 } \) is \(\frac { 11 }{ 17 } \)
8.
Associative property is not true for subtraction of rational numbers.
9.
\(\frac { -7 }{ 8 } \times \frac { -23 }{ 27 } =\frac { -23 }{ 27 } \times \frac { -7 }{ 8 } \) illustrates the closure property of rational numbers
10.
The rational numbers that are equal to their additive inverses are 0 and –1.
11.
\(\left( 1-\frac { 1 }{ 2 } \right) \times \left( \frac { 1 }{ 2 } -\frac { 1 }{ 4 } \right) \div \left( \frac { 3 }{ 4 } -\frac { 1 }{ 2 } \right) \)=
\(\frac { 1 }{ 2 } \)
\(\frac { 3 }{ 4 } \)
\(\frac { 1 }{ 4 } \)
\(\frac { -1 }{ 2 } \)
12.
Closure property is not true for division of rational numbers because of the number
0
-1
0
\(\frac { 1 }{ 2 } \)
13.
\(\frac { 3 }{ 4 } \div \left( \frac { 5 }{ 8 } +\frac { 1 }{ 2 } \right) \) =
\(\frac { 13 }{ 10 } \)
\(\frac { 2 }{ 3 } \)
\(\frac { 3 }{ 2 } \)
\(\frac { 5 }{ 8 } \)
14.
Which of the following pairs is equivalent?
\(\frac { -20 }{ 12 } ,\frac { 5 }{ 3 } \)
\(\frac { 16 }{ -30 } ,\frac { -8 }{ 15 } \)
\(\frac { -18 }{ 36 } ,\frac { -20 }{ 44 } \)
\(\frac { 7 }{ -5 } ,\frac { -5 }{ 7 } \)
15.
Which of the following rational numbers is the greatest?
\(\frac { -17 }{ 24 } \)
\(\frac { -13 }{ 16 } \)
\(\frac { 7 }{ -8 } \)
\(\frac { -31 }{ 32 } \)
16.
\(\frac { 22 }{ 7 } \)
17.
\(\frac { 1 }{ 0 } \)
18.
\(\frac { -4 }{ 9 } \times \frac { 9 }{ -4 } =\frac { 9 }{ -4 } \times \frac { -4 }{ 9 } =1\)
19.
\(\frac { -1 }{ 3 } \left( \frac { 1 }{ 4 } +\frac { 2 }{ 3 } \right) =\left( \frac { -1 }{ 3 } \times \frac { 1 }{ 4 } \right) +\left( \frac { -1 }{ 3 } \times \frac { 2 }{ 3 } \right) \)
20.
\(\left( \frac { 5 }{ 6 } +-1 \right) +\frac { -3 }{ 4 } =\frac { 5 }{ 6 } +\left( -1+\frac { -3 }{ 4 } \right) \)
1.
( )
1
2.
( )
\(\frac { 1 }{ 20 } \)
3.
( )
\(\frac { -29 }{ 39 } \)
4.
( )
\(\frac { 11 }{ 25 } \)
5.
( )
-4 and -3
6.
(a)
7.
(b)
8.
(a)
9.
(b)
10.
(b)
11.
(b)
\(\frac { 3 }{ 4 } \)
12.
(c)
0
13.
(b)
\(\frac { 2 }{ 3 } \)
14.
(b)
\(\frac { 16 }{ -30 } ,\frac { -8 }{ 15 } \)
15.
(a)
\(\frac { -17 }{ 24 } \)
16.
a rational number
17.
does not exist
18.
multiplicative inverse property
19.
distributive property of multiplication over addition
20.
associative property of addition
8th Standard Syllabus & Materials
8th Standard
TN 8th Tamil இயல் 3 - கல்வி கரையில - பாடறிந்து ஒழுகுதல் Important Questions And Answers Study Material - QB365 Set A
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Tamilnadu Stateboard 8th Standard Subjects
Tamilnadu Stateboard Standards
