RD Sharma Solutions for Class 6 Maths Chapter 1 Exercise 1.7 provide clear and easy-to-understand methods to help students master the skill of estimation by rounding numbers.
The solutions guide learners through various examples such as adding and subtracting rounded numbers, multiplying by approximated values, and estimating quotients, all of which help in developing number sense and mental calculation skills. These step-by-step solutions make it easier for students to grasp the concept of estimation and apply it confidently in their daily math problems.
Exercise 1.7 in RD Sharma Class 6 Maths focuses on the concept of estimation by rounding off numbers. This exercise helps students practice rounding numbers to different place values such as the nearest hundred, thousand, or the greatest place value. Using these rounded numbers, students learn to estimate sums, differences, products, and quotients.
The exercise is designed to improve mental math skills and speed, making it easier to handle large calculations by approximating numbers. Through a variety of problems, learners gain confidence in quickly estimating answers without performing detailed calculations, which is an important skill in everyday arithmetic.
Here are the solutions below to help you understand and solve all the questions from RD Sharma Solutions for Class 6 Chapter 1 Exercise 1.7 – Knowing Our Numbers easily.
Q1. Estimate the following by rounding off each factor to nearest hundreds:
i) 730 + 998
Sol: 700 + 1000 = 1700
ii) 796 – 314
Sol: 800 – 300 = 500
iii) 875 – 384
Sol: 900 – 400 = 500
Q2. Estimate the following by rounding off each factor to nearest thousands:
i) 12904 + 2888
Sol: 13000 + 3000 = 16000
ii) 28292 – 21496
Sol: 28000 – 21000 = 7000
Q3. Estimate the following by rounding off each number to its greatest place:
i) 439 + 334 + 4317
Sol: 400 + 300 + 4000 = 4700
ii) 8325 – 491
Sol: 8000 – 500 = 7500
iii) 108734 – 47599
Sol: 100000 – 50000 = 50000
iv) 898 × 785
Sol: 900 × 800 = 720000
v) 9 × 795
Sol: 10 × 800 = 8000
vi) 87 × 317
Sol: 90 × 300 = 27000
Q4. Find the estimated quotient for each of the following by rounding off each number to its greatest place:
i) 878 ÷ 28
Sol: 900 ÷ 30 = 30
ii) 745 ÷ 24
Sol: 700 ÷ 20 = 35
iii) 4489 ÷ 394
Sol: 4000 ÷ 400 = 10
Students can easily download the RD Sharma Solutions for Class 6 Maths Chapter 1 Exercise 1.7 PDF from the link provided below. This PDF contains detailed, step-by-step solutions for all questions.
It is a valuable resource for students to practice estimation techniques, understand the concepts clearly, and prepare thoroughly for their exams. Download the PDF now to access the complete solutions anytime, anywhere for effective learning and revision.
Study without using the internet
To prepare well for RD Sharma Class 6 Maths Chapter 1 Exercise 1.7 on estimation by rounding off numbers, students should focus on mastering the rules of rounding to different place values and applying these skills to perform quick estimations. Here are some useful preparation tips:
Understand the rounding rules clearly for hundreds, thousands, and the greatest place value before attempting the questions.
Solve all questions in Exercise 1.7 using the solutions PDF to verify your answers and learn the correct methods step-by-step.
Practice estimating sums, differences, products, and quotients by rounding numbers to improve your mental math speed and accuracy.
Solve previous year questions (PYQs) and school test papers related to rounding and estimation to get familiar with common question patterns.
Create short quizzes or flashcards with sample estimation problems to test your understanding under timed conditions.
Maintain a notebook with important rounding tips, examples, and quick reference notes to revise efficiently before exams.
RD Sharma Solutions for Class 6 Maths Chapter 1 - Knowing Our Numbers Exercises |