Question

JP DAV PUBLIC SCHOOL,GANAUR
Class 7(MATHEMATICS)
ASSIGNMENT(Operations on Rational numbers)
Q 1. Say true or false
(1)
(a). Rational numbers can be added or multiplied in any
order.
(b). The sum of any rational number and zero is the rational
number itself.
Q2. Fill in the blanks
(2)
(a) Additive inverse of -713 is
(b) -53+ 0 =
(C) -23-32 =
(2)
(d) Reciprocal of
---- doesn't exists.
Q3.What should be subtracted from -34 to get 56 ? (
Q4. Simplify 95 -227 + 730
(2)
Q5.Find three rational numbers between -57 and 57. (3)​

Answer 1

ques 1.

1. a. true

b. false

ques 2.

a. 713

b. -53

c.-55

d. 0

ques 3 .

a. 22

ques 4 .

a. 95 - 227 + 730

95 + 503

598 ans .

ques 5.

three rational no. between -57 and 57 are

-56 ,-55 , -54 ,-53 , -52 etc