Evaluate Expressions: (a) +80 – (–150) = _ Use Unmarked Number Line - Using the unmarked number line to add and subtract

part 2 - Question 1(c) - Page 255 - Using the unmarked number line to add and subtract - Chapter 10 Class 6 - The other side of Zero (Ganita Prakash) - Class 6 (Ganita Prakash & Old NCERT)

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Question 1 (c) - Page 255 Use unmarked number lines to evaluate these expressions: c. +80 – (–150) = _______ +80 – (–150) = 80 + 150 Since (80) is positive, we mark (80) to the right of zero And since (150) is positive, we mark (150) to the right we reach (230) Thus, +80 – (–150) = 80 + 150 = 230

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 15 years. He provides courses for Maths, Science and Computer Science at Teachoo