2.Add: (iii)–7mn+5,12mn+2,9mn–8,–2mn–3 –2mn–3 12mn+2 2.Add: (iii)–7mn+5 9mn–8 October 9, 2020 Category: Chapter 13 - Exponents and Powers , Maths , NCERT Class 7 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related