Adding and Subtracting Like terms - Worksheet

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Chapter 10 Class 7 Algebraic Expressions
Serial order wise

Ex 12.2, 2 - Add: (i) 3mn, -5mn, 8mn, -4mn (ii) t - 8tz, 3tz - z, z-t

 

 

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Transcript

Question 2 Add: (i) 3mn, – 5mn, 8mn, – 4mn 3mn + (–5mn) + 8mn + (–4mn) = 3mn – 5mn + 8mn – 4mn = mn (3 – 5 + 8 – 4) = mn (3 + 8 – 5 – 4) = mn (11 – (5 + 4)) = mn (11 – 9) = mn × 2 = 2mn 1

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.