Question

LASS VIII CHAPTER 1 - RATIONAL NUMBERS
−13
1. Write rational numbers equal to 23 with
a) Numerator 65 and -104 b) Denominator -23 and 161.
−8 11
2. a) Write the additive inverse of (i) 9 (ii) 221
−21 b) Verify that -(-p) = p , for p = 31
3. Find ten rational numbers between ( + ) and ( - ).
323632
4.Findb,if (b- )=x - x
555753
5. Write five rational numbers greater than -2.
3 −1 6
6. If a = 5 , b = 3 , c = 7 , then verify that
(i) a X b = b X a
(ii) a X ( b + c ) = ( a X b ) + ( a X c )
7. Divide the sum of 7 and 15 by their difference. 8 24
−6 2
8. By what number should we multiply 25 , so that the product may be 15 ?
9. Evaluate using the properties.
2 −3 1 3 3
x()--x
5 7 1475
10. Fill in the blanks:
(a) The value of 2 ÷ 5 is __________ .
−5 2
(b) 7 lies to the __________ of the zero on the number line.
−2
(c) The product of a number and its reciprocal _____________ .
−3 6
(d) The multiplicative inverse of 5 x 15 is ____________ .
(e) The multiplicative inverse of zero is ___________ .

Answer 1

Answer:

The product of a number and it's reciprocal