RD Sharma Solutions -Ex-1.7 Knowing Our Numbers, Class 6, Maths Class 6 Notes | EduRev

RD Sharma Solutions for Class 6 Mathematics

Created by: Abhishek Kapoor

Class 6 : RD Sharma Solutions -Ex-1.7 Knowing Our Numbers, Class 6, Maths Class 6 Notes | EduRev

The document RD Sharma Solutions -Ex-1.7 Knowing Our Numbers, Class 6, Maths Class 6 Notes | EduRev is a part of the Class 6 Course RD Sharma Solutions for Class 6 Mathematics.
All you need of Class 6 at this link: Class 6

Q1. Estimate the following by rounding off each factor to nearest hundreds:

i) 730 + 998

ii) 796 – 314

iii) 875 – 384

Sol : i) 700 + 1000 = 1700

ii) 800 – 300 = 500

iii) 900 – 400 = 500


Q2. Estimate the following by rounding off each factor to nearest thousands:

i) 12904 + 2888

ii) 28292 – 21496

Sol : i) 13000 + 3000 = 16000

ii) 28000 – 21000 = 7000


Q3. Estimate the following by rounding off each number to its greatest place:

i) 439 + 334 + 4317

ii) 8325 – 491

iii) 108734 – 47599

iv) 898 x 785

v) 9 x 795

vi) 87 x 317

Sol : i) 400 + 300 + 4000 = 4700

ii)8000 – 500 = 7500

iii)100000 -500000 = 50000

iv) 900 x 800 = 720000

v) 10 x 800 = 8000

vi) 90 x 300 = 27000


Q4. Find the estimated quotient for each of the following by rounding off each number to its greatest place :

i) 878÷28

ii) 745÷24

iii) 4489÷394

Sol : i) 900÷30 = 30

ii) 700÷20 = 35

iii) 4000÷400 = 10 

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