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3.Rational Numbers
Class 8 made by Ms Simmi Khosla
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1. The position of rational number -2/9 on the number line is:
2 points
To the left of 0
To the right of 0
Either to the left or to the right of 0
None of these
Clear selection
2. Which of the following statements is true?
2 points
4/7 lies to the right of 0 on the number line
-7/10 lies to the left of 0 on the number line
The rational numbers 2/5 and -8/5 are on the opposite sides of 0 on the number line
All the above
Clear selection
3. On the number line, -6/-7 lies;
2 points
To the left of 0
To the right of 0
Either to the left or to the right
None of these
Clear selection
4. Which of the following statements is true?
2 points
0 is the smallest rational number.
Every whole number is a rational number.
The rational number 9/11 lies on the left of 0 on the number line.
The rational numbers 2/-3 and -4/5 are on the opposite sides of 0 on the number line.
Clear selection
5. Multiplicative inverse of a negative rational number is:
2 points
A positive rational number.
A negative rational number
Neither positive nor negative.
None of these
Clear selection
6. Multiplicative inverse of 0/1 is:
2 points
0
1
-1
Not determinable
Clear selection
7. Which rational number is its own additive inverse?
2 points
0
1
-1
None of these
Clear selection
8. Which of the following statements is true?
*
2 points
Rational numbers are not closed under subtraction
One is the identity for addition of rational numbers
Division is the inverse of subtraction.
Rational numbers are not associative under subtraction.
9. If x and y are two rational numbers, then xy is also a rational number. This property is known as
*
2 points
Commutative property of multiplication
Closure property of multiplication
Associative property of multiplication
None of these
10. A rational between -1 and -5 is:
*
2 points
3/2
3/4
-5/2
-1/2
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