Subject Experts Solutions for Chapter: Rational Numbers, Exercise 3: Worksheet 3

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Subject Experts Mathematics Solutions for Exercise - Subject Experts Solutions for Chapter: Rational Numbers, Exercise 3: Worksheet 3

Attempt the practice questions on Chapter 1: Rational Numbers, Exercise 3: Worksheet 3 with hints and solutions to strengthen your understanding. NCERT Practice Workbook Mathematics solutions are prepared by Experienced Embibe Experts.

Questions from Subject Experts Solutions for Chapter: Rational Numbers, Exercise 3: Worksheet 3 with Hints & Solutions

HARD
8th CBSE
IMPORTANT

Match the column

                                              Column I    Column II
 a. The equivalent rational number of 57, whose numerator is 35, is  (i) 218
 b. Rational number571140 is equivalent to  (ii) 10421
 c. If a=14 and b=32, then a+b+a-b is equal to  (iii) -76
 d. The reciprocal of-38×-713 is  (iv) -154
 e. The multiplicative inverse of -117 is  (v) 3549
 f. To get the product 1, we should multiply 821 by  (vi) 120
 g. The reciprocal of35×-49 is  (vii) 12

 

MEDIUM
8th CBSE
IMPORTANT

Write the rational numbers from the list which are also the integers.

94, 84, 74, 64, 93, 83, 73, 63, 52, 42, 31, 32, 11, 01, -11, -21, -32, -42, -52, -62

EASY
8th CBSE
IMPORTANT

Is -135×67×89=-135×67×89? Verify.

MEDIUM
8th CBSE
IMPORTANT

By using which property, the value of 6713-3 can be determined. Also, find the value.

MEDIUM
8th CBSE
IMPORTANT

Give an example to show that the rational numbers are closed under addition, subtraction and multiplication. Are rational numbers closed under division? Give two examples to support your answer.

MEDIUM
8th CBSE
IMPORTANT

A shirt needs 214 m cloth. How many shirts can be made from 3124 m cloth?

MEDIUM
8th CBSE
IMPORTANT

If a, b and c are the three rational numbers, where a=13, b=25 and c=-53.
Then, verify a+(b+c)=(a+b)+c (associative property of addition)

MEDIUM
8th CBSE
IMPORTANT

If a, b and c are the three rational numbers, where a=13, b=25 and c=-53.

Then, verify a×(b×c)=(a×b)×c (associative property of multiplication)