Given: 215 + 436 To estimate a sum, first round off each number to its nearest tens, hundreds or thousands as per the number of digits in the numbers and then add. The estimated value of 215 is 200 and the estimated value of 436 is 400 Therefore, we need to add the estimated values. 2 0 0 + 4 0 0 6 0 0 Hence, the estimated sum is 600 .

Given: 869 - 341 To estimate a sum, first round off each number to its nearest tens, hundreds or thousands as per the number of digits in the numbers and then subtract. The estimated value of 869 is 900 and the estimated value of 341 is 300 Therefore, we need to subtract the estimated values. 900 - 300 = 600 Hence, the estimated difference is 600 .

Given: 1048 - 692 To estimate a difference, first round off each number to its nearest tens, hundreds or thousands as per the number of digits in the numbers and then subtract. The estimated value of 1048 is 1000 and the estimated value of 692 is 0 Therefore, we need to subtract the estimated values. 1000 - 0 = 1000 Hence, the estimated difference is 1000 .

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Secondary Mathematics Class -VI>Chapter 1 - Natural Numbers and Whole Numbers>Worksheet VII

Principal Mohan Lal and J.C. Nijhawan Solutions for Chapter: Natural Numbers and Whole Numbers, Exercise 8: Worksheet VII

Author:Principal Mohan Lal & J.C. Nijhawan

Principal Mohan Lal Mathematics Solutions for Exercise - Principal Mohan Lal and J.C. Nijhawan Solutions for Chapter: Natural Numbers and Whole Numbers, Exercise 8: Worksheet VII

Attempt the free practice questions on Chapter 1: Natural Numbers and Whole Numbers, Exercise 8: Worksheet VII with hints and solutions to strengthen your understanding. Secondary Mathematics Class -VI solutions are prepared by Experienced Embibe Experts.